Quantitative Aptitude - Arithmetic Ability Questions

An equilateral triangle of area 300 cm2 is cut from its three vertices to form a regular hexagon. Area of hexagon is what percent of the area of triangle?

The average monthly salary of 19 members of a group is Rs. 16000. If one more members whose monthly salary is Rs. 20000 has joined the group, then the average salary of the group is

For what value of X, 211X will be a perfect square?

If x - y = -8 and xy = 45, then (x2 + y2) is

2 ­- (cosA + sinA)2 is equal to

HCF of two numbers is 19 and their LCM is 665. If one of the number is 95, find the other.

Find the products : 0.5 x 0.05 x 0.005 x 500

An angle is four times its complementary angle. What is the measure of the angle?