Quantitative Aptitude - Arithmetic Ability Questions

If two complimentary angles are in the ratio of 11 : 7, find the smaller angle.

15 small rods, each of length 23 2/7 m are joined to make a big rod. What then is the length of the big rod?

What is the digit in unit's place of the product 51 x 52 x 53 ...... 59?

The volume of a hemisphere is 5749.33 cm³. Find its diameter (in cm).

The effective annual rate of interest corresponding to a nominal rate of 7% per annum payable half­yearly is

The centroid of a triangle is the point where

The diagonals of 2 squares M and N are in the ratio 2:1. The ratio of their areas is