Quantitative Aptitude - Arithmetic Ability Questions

If the radius of a circle is increased by 16%, its area increases by

Select the odd word/letters/number/number pair from the given alternatives.

What is the value of (sin60° + 2/√3) ?

What is the value of sin 5π/3?

A mobile plan costs Rs. 32 for 6 minutes. What is the approximate cost, in rupees, for 4 minutes?

In 2 years at simple interest the principal increases by 8%. What will be the compound interest earned (in Rs) on Rs 10 lakhs in 2 years at the same rate?

Product of digits of a 2-digit number is 15. If we add 18 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.

The average height of 30 boys out of a class of 50 is 160 cm. If the average height of the remaining boys is 165 cm, the average height of the whole class (in cm) is: