A project consists of 3 activities with durations 4, 6, and 8 days. The second activity starts only after the first, while the third starts after both the first and second are completed. What is the minimum project completion time?
A project consists of 3 activities with durations 4, 6, and 8 days. The second activity starts only after the first, while the third starts after both the first and second are completed. What is the minimum project completion time?
A bag contains 5 red, 4 blue and 3 green balls. Two balls are drawn without replacement. What is the probability that both are of the same colour?
A bag contains 5 red, 4 blue and 3 green balls. Two balls are drawn without replacement. What is the probability that both are of the same colour?
Four friends have different heights. A is taller than B but shorter than C. D is shorter than B. Who is the tallest?
Four friends have different heights. A is taller than B but shorter than C. D is shorter than B. Who is the tallest?
Which of the following is the smallest number divisible by 12, 15 and 18?
Which of the following is the smallest number divisible by 12, 15 and 18?
Which number should replace ? in the sequence? 2, 6, 12, 20, 30, ?
Which number should replace ? in the sequence? 2, 6, 12, 20, 30, ?
If 8 workers complete a job in 15 days, how many workers are required to complete the same job in 10 days?
If 8 workers complete a job in 15 days, how many workers are required to complete the same job in 10 days?
If (a:b = 5:8) and (b:c = 4:7), then (a:c = ?)
If (a:b = 5:8) and (b:c = 4:7), then (a:c = ?)
The average age of 12 employees is 32 years. A new employee aged 44 years joins. What is the new average age?
The average age of 12 employees is 32 years. A new employee aged 44 years joins. What is the new average age?
The value of (0.125 \times 0.08) is:
The value of (0.125 \times 0.08) is:
How many integers from 1 to 500 are divisible by 6 or 8?
How many integers from 1 to 500 are divisible by 6 or 8?
If (2^x = 64), what is the value of (x)?
If (2^x = 64), what is the value of (x)?
How many different arrangements can be made using all the letters of the word EARTH?
How many different arrangements can be made using all the letters of the word EARTH?
A shopkeeper buys an article for ₹800 and marks it 40% above cost price. He allows a 10% discount. What is the selling price?
A shopkeeper buys an article for ₹800 and marks it 40% above cost price. He allows a 10% discount. What is the selling price?
A number is increased by 10%, then by 20%. The overall increase is:
A number is increased by 10%, then by 20%. The overall increase is:
A machine produces 240 items in 8 hours. At the same rate, how many hours are required to produce 450 items?
A machine produces 240 items in 8 hours. At the same rate, how many hours are required to produce 450 items?
If A ⊆ B and B ⊆ C, which statement is always true?
If A ⊆ B and B ⊆ C, which statement is always true?
A shopkeeper allows a discount of 25% on the marked price and still earns 20% profit. The marked price is what percentage of the cost price?
A shopkeeper allows a discount of 25% on the marked price and still earns 20% profit. The marked price is what percentage of the cost price?
In a coding system, BOOK = 2552 and LOOK = 6552. What digit represents the letter L?
In a coding system, BOOK = 2552 and LOOK = 6552. What digit represents the letter L?
A cube is painted on all six faces and cut into 125 identical cubes. How many small cubes have exactly three painted faces?
A cube is painted on all six faces and cut into 125 identical cubes. How many small cubes have exactly three painted faces?
The difference between the squares of 51 and 49 is:
The difference between the squares of 51 and 49 is:
A binary number 110101₂ is equal to which decimal number?
A binary number 110101₂ is equal to which decimal number?
If Some A are B and All B are C, which conclusion definitely follows?
If Some A are B and All B are C, which conclusion definitely follows?
If (A = {1,2,3,4}) and (B = {3,4,5,6}), then (A \cap B) is:
If (A = {1,2,3,4}) and (B = {3,4,5,6}), then (A \cap B) is:
Which of the following is a valid conclusion? Statement: All squares are rectangles. Some rectangles are rhombuses.
Which of the following is a valid conclusion? Statement: All squares are rectangles. Some rectangles are rhombuses.
Five statements are given. Which one is a valid argument? 1. All mammals breathe. Whales are mammals. Therefore, whales breathe. 2. All birds fly. Penguins are birds. Therefore, penguins fly. 3. Some fruits are sweet. Mango is sweet. Therefore, mango is a fruit. 4. All cars are vehicles. Bicycle is a vehicle. Therefore, bicycle is a car.
Five statements are given. Which one is a valid argument? 1. All mammals breathe. Whales are mammals. Therefore, whales breathe. 2. All birds fly. Penguins are birds. Therefore, penguins fly. 3. Some fruits are sweet. Mango is sweet. Therefore, mango is a fruit. 4. All cars are vehicles. Bicycle is a vehicle. Therefore, bicycle is a car.
A principal becomes ₹13,225 in 2 years at 5% compound interest. What is the principal?
A principal becomes ₹13,225 in 2 years at 5% compound interest. What is the principal?
Which one of the following is the smallest fraction?
Which one of the following is the smallest fraction?
If (x+\frac1x=5), then the value of (x^2+\frac1{x^2}) is:
If (x+\frac1x=5), then the value of (x^2+\frac1{x^2}) is:
Which of the following numbers is not a perfect square?
Which of the following numbers is not a perfect square?
A solid cube of side 12 cm is cut into cubes of side 3 cm. How many small cubes are obtained?
A solid cube of side 12 cm is cut into cubes of side 3 cm. How many small cubes are obtained?
A jar contains 4 red, 5 blue and 6 yellow marbles. Three marbles are drawn without replacement. What is the probability that all are blue?
A jar contains 4 red, 5 blue and 6 yellow marbles. Three marbles are drawn without replacement. What is the probability that all are blue?
A fair die is rolled three times. What is the probability of getting exactly two sixes?
A fair die is rolled three times. What is the probability of getting exactly two sixes?
How many positive divisors does 360 have?
How many positive divisors does 360 have?
The sum of the first 20 natural numbers is:
The sum of the first 20 natural numbers is:
What is the remainder when (2^{20}) is divided by 7?
What is the remainder when (2^{20}) is divided by 7?
A positive integer leaves remainders 2, 3, and 4 when divided by 5, 6, and 7 respectively. What is the smallest such integer?
A positive integer leaves remainders 2, 3, and 4 when divided by 5, 6, and 7 respectively. What is the smallest such integer?
Which of the following fractions has the greatest value?
Which of the following fractions has the greatest value?
What is the remainder when (7^{100}) is divided by 6?
What is the remainder when (7^{100}) is divided by 6?
From 8 different books, in how many ways can 3 books be selected?
From 8 different books, in how many ways can 3 books be selected?
How many ways can 5 boys and 4 girls be seated in a row if all the girls sit together?
How many ways can 5 boys and 4 girls be seated in a row if all the girls sit together?
If 15% of a number is 54, what is 35% of the same number?
If 15% of a number is 54, what is 35% of the same number?
The simple interest on a sum at 12% per annum for 2 years is ₹960. The principal is:
The simple interest on a sum at 12% per annum for 2 years is ₹960. The principal is:
A retailer purchases an article for ₹2,400. Successive discounts of 10% and 20% are offered on the marked price of ₹4,000. What is the retailer's profit?
A retailer purchases an article for ₹2,400. Successive discounts of 10% and 20% are offered on the marked price of ₹4,000. What is the retailer's profit?
Which symbol should replace ? to make the expression true? 48 ? 6 ? 2 = 4
Which symbol should replace ? to make the expression true? 48 ? 6 ? 2 = 4
The decimal equivalent of 0.625 is what fraction in simplest form?
The decimal equivalent of 0.625 is what fraction in simplest form?
A code uses 3 binary bits. How many different codes can be represented?
A code uses 3 binary bits. How many different codes can be represented?
A student answered 80% of 150 questions correctly. How many questions were answered incorrectly?
A student answered 80% of 150 questions correctly. How many questions were answered incorrectly?
A sum becomes ₹5,832 in 2 years at 8% compound interest. What was the principal?
A sum becomes ₹5,832 in 2 years at 8% compound interest. What was the principal?
A committee of 4 members is to be formed from 6 men and 4 women. If the committee must contain exactly 2 women, how many committees can be formed?
A committee of 4 members is to be formed from 6 men and 4 women. If the committee must contain exactly 2 women, how many committees can be formed?
The hexadecimal number 3A is equal to which decimal number?
The hexadecimal number 3A is equal to which decimal number?
A sphere has a diameter of 14 cm. What is its volume? (Use (\pi=\frac{22}{7}))
A sphere has a diameter of 14 cm. What is its volume? (Use (\pi=\frac{22}{7}))
Which one of the following is not a prime number?
Which one of the following is not a prime number?
If the ratio of the angles of a triangle is 2 : 3 : 4, the largest angle is:
If the ratio of the angles of a triangle is 2 : 3 : 4, the largest angle is:
If 75% of a number is 270, then 40% of that number is:
If 75% of a number is 270, then 40% of that number is:
How many different 5-digit numbers can be formed using the digits 1, 2, 3, 4, 5 without repetition?
How many different 5-digit numbers can be formed using the digits 1, 2, 3, 4, 5 without repetition?
Which one is an example of inductive reasoning?
Which one is an example of inductive reasoning?
Which number should replace ? in the series? 3, 7, 15, 31, 63, ?
Which number should replace ? in the series? 3, 7, 15, 31, 63, ?
If all the letters in the word "EXAMINATION" are arranged alphabetically, which letter will be 6th from the left?
If all the letters in the word "EXAMINATION" are arranged alphabetically, which letter will be 6th from the left?
What is the value of (3^4+4^3)?
What is the value of (3^4+4^3)?
A password consists of 2 letters followed by 3 digits. If repetition is not allowed, how many passwords can be formed?
A password consists of 2 letters followed by 3 digits. If repetition is not allowed, how many passwords can be formed?
If the radius of a circle is increased by 20%, by what percentage does its area increase?
If the radius of a circle is increased by 20%, by what percentage does its area increase?
A number is increased by 25% and then decreased by 20%. The final result is:
A number is increased by 25% and then decreased by 20%. The final result is:
How many integers between 100 and 999 are divisible by 7 but not divisible by 5?
How many integers between 100 and 999 are divisible by 7 but not divisible by 5?
A train covers 420 km in 6 hours. If its speed is increased by 20 km/h, how much time will it take to cover the same distance?
A train covers 420 km in 6 hours. If its speed is increased by 20 km/h, how much time will it take to cover the same distance?
Which Venn diagram correctly represents Doctors, Surgeons and Cardiologists?
Which Venn diagram correctly represents Doctors, Surgeons and Cardiologists?
What is the least positive integer that leaves a remainder of 3 when divided by 5, 6, and 8?
What is the least positive integer that leaves a remainder of 3 when divided by 5, 6, and 8?
How many 4-digit even numbers can be formed using the digits 1, 2, 3, 4, 5 without repetition?
How many 4-digit even numbers can be formed using the digits 1, 2, 3, 4, 5 without repetition?
A statement is followed by two assumptions. Statement: "Use rechargeable batteries to reduce waste." Assumptions: I. Rechargeable batteries can be reused. II. Disposable batteries create waste.
A statement is followed by two assumptions. Statement: "Use rechargeable batteries to reduce waste." Assumptions: I. Rechargeable batteries can be reused. II. Disposable batteries create waste.
If (f(x)=3x-7), then (f(f(4))) equals:
If (f(x)=3x-7), then (f(f(4))) equals:
The ratio of boys to girls in a class is 7 : 5. If there are 84 students, how many are girls?
The ratio of boys to girls in a class is 7 : 5. If there are 84 students, how many are girls?
How many trailing zeros are there in 25!?
How many trailing zeros are there in 25!?
A cube is folded from a sheet. If the face marked ★ is opposite ▲, and ■ is adjacent to both, which statement must be true?
A cube is folded from a sheet. If the face marked ★ is opposite ▲, and ■ is adjacent to both, which statement must be true?
Which one of the following numbers is divisible by 11?
Which one of the following numbers is divisible by 11?
A cylinder has radius 7 cm and height 10 cm. Its volume is: (Use ( \pi=\frac{22}{7}))
A cylinder has radius 7 cm and height 10 cm. Its volume is: (Use ( \pi=\frac{22}{7}))
If 15% of x = 75, then 40% of x = ?
If 15% of x = 75, then 40% of x = ?
How many multiples of 9 lie between 100 and 500 (both inclusive)?
How many multiples of 9 lie between 100 and 500 (both inclusive)?
Which of the following is the greatest?
Which of the following is the greatest?
The least number that must be added to 1568 to make it exactly divisible by 17 is:
The least number that must be added to 1568 to make it exactly divisible by 17 is:
The average of 8 consecutive integers is 32.5. What is the largest integer?
The average of 8 consecutive integers is 32.5. What is the largest integer?
A binary tree with 31 nodes has how many levels if it is a perfect binary tree?
A binary tree with 31 nodes has how many levels if it is a perfect binary tree?
How many diagonals does a 12-sided polygon have?
How many diagonals does a 12-sided polygon have?
A clock gains 3 minutes every hour. If it is set correctly at 8:00 AM, what time will it show at 8:00 PM on the same day?
A clock gains 3 minutes every hour. If it is set correctly at 8:00 AM, what time will it show at 8:00 PM on the same day?
In a code language, TRAIN = USBJO. How is PLANE coded?
In a code language, TRAIN = USBJO. How is PLANE coded?
A box contains 10 white, 6 black and 4 red balls. What is the probability of drawing a red ball?
A box contains 10 white, 6 black and 4 red balls. What is the probability of drawing a red ball?
If A △ B = A² + B², then the value of 3 △ 4 is:
If A △ B = A² + B², then the value of 3 △ 4 is:
If A = 2, B = 6, C = 12, D = 20, then E = ?
If A = 2, B = 6, C = 12, D = 20, then E = ?
Which of the following fractions is the largest?
Which of the following fractions is the largest?
A box contains 4 white, 5 black and 6 green balls. Three balls are drawn at random. What is the probability that all three are green?
A box contains 4 white, 5 black and 6 green balls. Three balls are drawn at random. What is the probability that all three are green?
A tank is 40% full. After adding 120 litres, it becomes 70% full. What is the capacity of the tank?
A tank is 40% full. After adding 120 litres, it becomes 70% full. What is the capacity of the tank?
A number is selected from 1 to 100. What is the probability that it is divisible by 4 or 6?
A number is selected from 1 to 100. What is the probability that it is divisible by 4 or 6?
Which of the following numbers is irrational?
Which of the following numbers is irrational?
A number is increased by 20% and then decreased by 20%. The final value is:
A number is increased by 20% and then decreased by 20%. The final value is:
A solid cube of side 6 cm is cut into cubes of side 2 cm. How many small cubes are formed?
A solid cube of side 6 cm is cut into cubes of side 2 cm. How many small cubes are formed?
Which figure comes next in the pattern? ▲ ○ ▲ ○ ▲ ?
Which figure comes next in the pattern? ▲ ○ ▲ ○ ▲ ?
Five people P, Q, R, S and T are sitting around a circular table facing the centre. P is between T and Q. R is opposite P. S is to the immediate left of Q. Who is to the immediate right of T?
Five people P, Q, R, S and T are sitting around a circular table facing the centre. P is between T and Q. R is opposite P. S is to the immediate left of Q. Who is to the immediate right of T?
A cube has a total surface area of 384 cm². What is its volume?
A cube has a total surface area of 384 cm². What is its volume?
The HCF of two numbers is 18 and their LCM is 756. If one number is 126, what is the other number?
The HCF of two numbers is 18 and their LCM is 756. If one number is 126, what is the other number?
A number is divisible by 9 if:
A number is divisible by 9 if:
The sum of the interior angles of a 15-sided polygon is:
The sum of the interior angles of a 15-sided polygon is:
If P → Q is true and Q is false, which conclusion follows?
If P → Q is true and Q is false, which conclusion follows?