List of top Questions asked in CAT- 2015

The HCF of two numbers is 12, and their LCM is 144. If one number is 36, what is the other number?

A shopkeeper sells an item at a 20% profit. If the cost price is increased by 10% and the selling price by Rs. 10, the profit percentage becomes 15%. What is the original cost price?

A and B can complete a task in 12 days, B and C in 15 days, A and C in 20 days. How many days will A alone take?

What is the probability of getting a sum of 7 when two dice are rolled?

The sum of the ages of a father and son is 50 years. Five years ago, the father’s age was four times the son’s age. What is the father’s current age?

A train travels 360 km at a uniform speed. If the speed had been 5 km/h more, it would have taken 1 hour less. What is the speed of the train?

A train travels 360 km in 4 hours. What is its speed in km/h?

If the area of a square is 64 cmÂ², what is the length of its diagonal?

A pipe can fill a tank in 6 hours, and another pipe can empty it in 8 hours. If both pipes are opened together, how long will it take to fill the tank?

The sum of the first $n$ terms of an arithmetic progression is $S_n = 3n^2 + 2n$. What is the 5th term?

If $ 2x + 3y = 12 $ and $ x - y = 1 $, what is the value of $ x $?

If the roots of the equation $x^2 - kx + 16 = 0$ are integers, what is the sum of the roots?

A sum of money doubles in 4 years at a certain rate of compound interest. In how many years will it become 8 times?

If $3x + 4y = 12$ and $x - y = 1$, what is the value of $x + y$?

The area of a circle is $154$ cmÂ². What is the circumference of the circle?

Using the same bar graph, what is the percentage increase in production of product Q from 2013 to 2015?

Using the same pie chart, what is the combined expense of Utilities and Miscellaneous?

Using the same line graph, what is the average stock price over the four months?

Using the same line graph, in which month was the stock price the lowest?

Using the same bar graph, which product has the highest total production over 2013-2015?

The bar graph shows production (in thousand units) of products P, Q, R over 2013-2015. What is the total production of product P?

Five friends A, B, C, D, E sit in a row facing north. A is to the left of B, C is between A and B, D is not at an end, E is to the right of B. Who is in the middle?

Using the same line graph, what is the absolute difference between the highest and lowest stock prices?

The line graph shows monthly closing stock prices (in Rs.) of Company X for Jan-Apr 2015: Jan = 100, Feb = 120, Mar = 110, Apr = 130. What is the percentage increase from Jan to Apr?

Using the same bar graph, what is the average production of product R over the three years?