Quantitative Aptitude - Arithmetic Ability Questions

The difference between the largest and the smallest angles of a triangle whose angles are in the ratio of 5:3:10 is

The least number, which when divided by 5, 6, 7 and 8 leaves a remainder 3 in each case, but when divided by 9 leaves no remainder, is:

The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 12% per annum is Rs 72. What is the value of given sum (in Rs)?

The radius of two cylinders are in the ratio of 3:2 and their heights are in the ratio 3:7. The ratio of their volumes is :

The greatest perfect square number of 6 digits is

A Lawn roller makes 20 revolutions in one hour. The radius it runs through 25 minutes is

All rational numbers are ____ numbers.

In the following question, select the odd letter/letters from the given alternatives.