Quantitative Aptitude - Arithmetic Ability Questions

If the measure of the interior angle of a regular polygon is 120 deg then how many sides does it have?

In triangle DEF measure of angle E is 90 deg. If cotD = 5/12 and DE = 1 cm, then what is the length (in cm) of side EF?

If the amount received at the end of 2nd and 3rd year at Compound Interest on a certain Principal is Rs 25088, and Rs 28098.56 respectively, what is the rate of interest?

Which of the following numbers is divisible by 9?

In triangle ABC, ∠ABC = 90°. BP is drawn perpendicular to AC. If ∠BAP = 30°, then what is the value (in degrees) of ∠PBC?

The total surface area of a hemisphere is 41.58 sq cm, find its radius.

The surface area of a sphere is 2464 cm². Find its diameter (in cm).

The ratio of marks obtained by a student was 1:2:3. The school decided to allow grace marks of 5% for each subject. Find the student's new ratio.