Quantitative Aptitude - Arithmetic Ability Questions

The perimeters of a square and an equilateral triangle are equal. If the diagonal of the square is 9 cm, what is the area of the equilateral triangle?

In these tests find the Odd figure out

Findout the odd word/letters/number/number pair from the given alternatives.
7 : 50 : : 9 : ?

If Tan θ = 4/3, then what is the value of Sin θ?

The area of a rhombus having one side 10 cm and one diagonal 12 cm is

Two circles touch each other at point X. A common tangent touch them at two distinct points Y and Z. If another tangent passing through X cut YZ at A and XA= 16 cm, then what is the value (in cm) of YZ?

The average weight of 25 candles is 40 grams. If some candles of weight 50 grams each were removed, then average weight becomes 37.5 grams. How many candles of weight 50 grams each were removed? 

A librarian purchased 60 story books for his library. But he found that he could get 4 extra books by spending Rs 336 more and then the overall average price per book would be reduced by Re 1. The previous average price of each book was