Quantitative Aptitude - Arithmetic Ability Questions

In a rhombus _____.

Simplify : 213 - 112 of 35 + 125 ÷ 213

If the equations 6x - 5y + 11 = 0 and 15x + ky - 9 = 0 have no solution, then the value of k is:

The number of sides of a regular polygon whose exterior angles are each 72 deg is

If the sum of the measures of all the interior angles of polygon is 1800°, find the number of sides of the polygon?

Calculate the difference between the square of the largest and smallest two-digit prime numbers.

The simple interest on a sum of money is 16/25 of the principal. The number of years is equal to the rate of interest per annum. What is the rate (in percentage) of interest per annum?

A man has some hens and some cows. If the total number of heads of hens and cows together is 50 and the nunber of feet of hens and cows together is 142, then the number of cows is