Quantitative Aptitude - Arithmetic Ability Questions

Five angles of a hexagon measure 116 deg each. What is the measure of the remaining angle?

If x2+1x2-6, then find the value of 2x(x-1)x3-x2-x+1

4*(-­0.1(5.5 + 8.5)) of 0.5 = ?

There are two numbers such that the first number is half of the second number. If their average is 57, then what is the first number?

Product of digits of a 2­digit number is 12. If we add 36 to the number, the new number obtained is a number formed by interchange of the digits. What is the number.

Find the range of the data : 11,13, 9, 17, 13, 19, 10, 11

Which of the following is correct?

The total surface area of a hemisphere is 462 sq cm, what is its curved surface area? (Take π = 22/7)