List of top Quantitative Aptitude Questions

A group of men decided to do a job in 8 days. But since 10 men dropped out every day, the job got completed at the end of the 12th day. How many men were there at the beginning?

Four sisters — Suvarna, Tara, Uma and Vibha are playing a game such that the loser doubles the money of each of the other players from her share. They played four games and each sister lost one game in alphabetical order. At the end of fourth game, each sister had Rs. 32.

A group of workers starts a job. From Day 2 onward, 1 worker is removed each day. The job ends when the last worker is withdrawn. If all had worked full time, the work would’ve been done in 2/3 time. How many workers were initially in the group?

How many hours would P take to reach point B?

How many more hours would P take compared to Q to complete the journey?

Ship is 18 miles from shore when a seaplane, 10x faster, is sent. Where does it catch up?

If a spherical ball is placed on a hollow cone with same diameter, what portion will be outside?

Three identical cones with base radius \( r \) are placed so each touches the other two. What is the radius of the circle drawn through their vertices?

The line AB is 6 metres and is tangent to the inner of two concentric circles at point C. Radii of the two circles are integers. What is the radius of the outer circle?

Given odd positive integers \( x, y, z \), which of the following is not necessarily true?

How many positive integers less than or equal to 100 are not divisible by 2, 3, or 5?

Let \( x<0.50 \), \( 0<y<1 \), \( z>1 \). What is the median of x, y, z?

Suppose one wishes to find distinct positive integers \( x, y \) such that \( \frac{x + y}{xy} \) is also a positive integer. What can be said about the number of such valid pairs?

Trailing zeroes in 100! (product of 1 to 100)?

From 5 points (4 vertices of a square + 1 intersection point of diagonals), how many triangles can be formed?

A girl counts fingers: 1 = thumb, 2 = index, ..., 5 = little finger, then reverses. Count reaches 1994. Which finger does she end on?

A box contains 6 red, 7 green, and 5 blue balls (all distinct in size). What is the probability that the selected red ball is the smallest red ball?

Based on the same amusement park data, how many children took exactly one ride?

P and Q start from opposite ends, with Q starting an hour later and at twice the speed. When P has covered 1/6th the distance, Q has also covered the same. Where do they meet?

85 children went to an amusement park with 3 rides. Each ride costs Re.1. 20 children took all 3 rides, 55 took at least 2 rides, and the total receipt was Rs.145. How many children did not take any rides?

Given: \( x<0 \), \( 0<y<1 \), \( z>1 \). Which of the following may be false?

The function given by \( f(x) = |x|^3 \) is

Two oranges, three bananas and four apples cost Rs.15. Three oranges, two bananas and one apple cost Rs.10. I bought 3 oranges, 3 bananas and 3 apples. How much did I pay?

Find the maximum value of \( y = \min\left(\frac{1}{2} - \frac{3x^2}{4}, \frac{5x^2}{4}\right) \) for \( 0<x<1 \)