Quantitative Aptitude - Arithmetic Ability Questions

Find out the odd word/letters/number/number pair from the given alternatives.

Find the mean of the first 6 prime numbers?

Find the sum of interior angles of a decagon?

The mean of marks secured by 35 students in division A of class X is 65, 45 students of division B is 61 and that of 70 students of division C is 59. What is the mean of marks of the students of three divisions of Class X?

Which of the following equations has 3 as a root?

ΔPQR is right angled at Q. If cosecP = 25/24, then what is the value of cotR ?

A flask has two holes. The 1st hole alone makes the flask empty in 9 minutes and 2nd hole alone makes the flask empty in 16 minutes. If water leaks out at a constant rate, how long in minutes does it take if both the holes together empty the flask?

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