Quantitative Aptitude - Arithmetic Ability Questions

What is the age of the eldest sister if, the sum of ages of 5 sisters born at the intervals of 3 years each is 50 years?

The mean of the data 3, 10, 10, 4, 7, 10, 5 is

The co-ordinates of the centroid of a triangle ABC are (-1 , 4). What are the co-ordinates of vertex C if co-ordinates of A and B are (-3 , -1) and (3 , 5) respectively?

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

Solve : (x + 2y) (2x - y)

From the top of a platform 5 m high, the angle of elevation of a tower was 30 deg. If the platform was positioned 40√3 m away from the tower, how tall was the tower?

A sum of Rs. 2000 at 40% per annum compounded annually. Calculate the interest for the third your at compound interest.

If the length of the shadow of a vertical pole on the horizontal ground is √3 times its height, then the angle of elevation