Quantitative Aptitude - Arithmetic Ability Questions

If the radius of a circle is increased by 25%, its area increases by:

In the year 2016, there were 52 weeks and P days. Find the value of P

What is the fourth proportional to 189, 273 and 153?

Raman spends 80% of his income. If his income is increased by 25% and the expenditure increase by 10%, then what will be the percentage increase in his savings?

37 trees are planted in a straight line such that distance between any two consecutive trees is same. A car takes 20 seconds to reach the 13th tree. How much more time (in seconds) will it take to reach the last tree?

A group consists of 4 couples in which each of the 4 boys have one girl friend.In how many ways they can be arranged in a straight line such that boys and girls occupies alternate positions?

Calculate the amount on Rs. 1875 for 2 year at 4% per annum, compounded yearly.

In the given figure, ABCD is a square. EFGH is a square formed by joining mid points of sides of ABCD. LMNO is a square formed by joining mid points of sides of EFGH. A circle is inscribed inside EFGH. If area of circle is 38.5 sq.cm, the what is the area (in sq.cm) of square ABCD?