Quantitative Aptitude - Arithmetic Ability Questions

The sum of present age of father and his son is 60 yrs. Six years ago, father's age was five times the age of the son. After 6 years, son's age will be?

A, B and C can do a job working alone in 6, 9 and 18 days respectively. They all work together for 1 day, then A and B quit. How many days C working alone will take to complete the remainder of the job?

The lengths of the two diagonals of a rhombus are 5 cm and 12 cm. Find its area (in cm2)

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

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

What is the value of cot 11π/6?

If 5/6th of 7/6th of a number is 140, then 9/4th of that number is

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