Quantitative Aptitude - Arithmetic Ability Questions

The radius and the height of a cone are each increased by 20%. Then the volume of the cone increases by

In a rhombus _____.

What is the slope of the line perpendicular to the line passing through the points (­-4,5) and (3,­-2)?

Calculate the sum of squares from 1 to 9.

A man can cover a certain distance in 3 hours 36 minutes if he walks at the rate of 5 Km/hr. If he covers the same distance on cycle at the rate of 24 Km/hr, then the time taken by him in minutes is

ΔDEF is right angled at E. If m∠F = 30 deg, then find the value of (sinD - 1/3).

Present age of Vikas and Raman are in the ratio of 6 : 5 respectively. If the present age of Rohan is 98 years and the present age of Vikas is 3/7 of the the present age of Rohan, then after how many years the ages of Vikas and Raman would be in the ratio of 7 : 6?

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?