Quantitative Aptitude - Arithmetic Ability Questions

Convert binary 1101111 to decimal.

The total surface area of a hemisphere is 4158 cm2. Find its diameter (in cm).

(1132 + 1152 + 1172 - 113 x 115 - 115 x 117 - 117 x 113) is equal to

Simple interest on a certain sum of money for 3 years at 10% per annum is half the compound interest on Rs 6000 for 2 years at 10% per annum. The sum placed on simple interest is

A sum becomes Rs 10000 in 10 years on simple interest at the rate of 10% per annum. What is the total interest (in Rs) of the 10 years?

X is 25% more efficient than Y. If Y alone can make a chair in 10 days, then X alone can make the chair in how many days?

Select the odd word/letters/number/number pair from the given alternatives.

If the population of a town increases by 25% in the first year and increases by 36% in the second year, then what is the average rate (in percentage)of increase in the population?