List of top Quantitative Ability and Data Interpretation Questions

The average of 11 numbers is 10.9. If the average of the first six numbers is 10.5 and that of the last six numbers is 11.4, then the middle number is :
On a journey across Kolkata, a taxi averages 40 kmph for 60% of distance, 30 kmph for 20% of the distance, and 10 kmph for the remainder. The average speed of the whole journey is
A can do a piece of work in 25 days and B in 20 days. They work together for 5 days and then A goes away. In how many days will B finish the remaining work ?
A and B rent a pasture for 10 months; A puts in 80 cows for 7 months. How many can B put in for the remaining 3 months, if he pays half as much again as A?
A bag contains 5 white and 3 black balls, and 4 are successively drawn out and not replaced. What’s the chance of getting different colours alternatively?
A bag contains 100 tickets numbered 1, 2, 3, .... 100. If a ticket is drawn out of it at random, what is the probability that the ticket drawn has the digit 2 appearing on it?
If A and B are two mutually exclusive and exhaustive events with P(B)=3P(A), then what is the value of P(B)?
In a given race the odds in favour of three horses A, B, C are 1:3; 1:4; 1:5 respectively. Assuming that dead heat is impossible the probability that one of them wins is
Find the value of 1% of 1% of 25% of 1000 is
A property dealer sells a house for ` 6,30,000 and in the bargain makes a profit of 5%. Had he sold it for ` 5,00,000, then what percentage of loss or gain he would have made?
One litre of water is evaporated from 6 litres of a solution containing 5% salt. The percentage of salt in the remaining solution is
The value of \(\frac{\frac{1}{2}+\frac{1}{2}\text{of}\frac{1}{2}}{\frac{1}{2}+\frac{1}{2}\text{of}\frac{1}{2}}\)is
If the numerator of a fraction is increased by 200% and the denominator is increased by 200%, then resultant fraction is \(2\frac{4}{5}\). What is the original fraction?
Two numbers are such that the square of greater number is 504 less than 8 times the square of the other. If the numbers are in the ratio 3 : 4. Find the number.
What smallest number should be added to 4456 so that the sum is completely divisible by 6?
The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and 15 as remainder. What is the smaller number ?
The last two-digits in the multiplication 122×123×125×127×129 will be
At a simple interest, 800 becomes 956 in three years. If the interest rate, is increased by 3%, how much would 800 become in three years?
A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/h, then find the length of the platform.
In the adjoining figure, ABCD is a cyclic quadrilateral. If AB is a diameter, BC = CD and ∠ABD=40°, find the measure of ∠DBC.
In the adjoining figure, ABCD is a cyclic quadrilateral. If AB is a diameter
C is the mid-point of PQ, if P is (4, x), C is (y, -1) and Q is (-2, 4), then x and y respectively are
If two tangents inclined at an angle are drawn to a circle of radius 3 cm, then length of each tangent is equal to
If two tangents inclined at an angle are drawn to a circle of radius 3 cm
What number must be added to the expression 16a2-12a to make it a perfect square?
Which of the following functions is an odd function?
How many different letter arrangements can be made from the letter of the word EXTRA in such a way that the vowels are always together?