Quantitative Aptitude - Arithmetic Ability Questions

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

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

The least number to be added to 435 to make it a perfect square is

If a2+1=a, then the value of a3 is

What is the circumference (in cm) of a circle whose area is 616 sq cm?

If the sum of the measures of all the interior angles of polygon is 1800°, find the number of sides of the polygon?

Which of the following numbers is divisible by 9?

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by aLogic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.