G is the centroid of a triangle ABC, and the median is AD, the ratio of AD and GA is

Six years ago, the ratio of ages of A to B was 7 : 5. After 4 years from now, the ratio of their ages will be 11 : 9. What is A’s age at present?

If a^2x+2=1, where a is a positive real number other than 1, then x is equal to 

Directions : The graph shows the demand and production of different companies. Study the graph and answer the following questions.

What is the lowest production company?

A can finish one-third of a work in 5 days, B can finish 2/5^th of the same work in 10 days and C can finish 75 % of the same work in 15 days. They work together for 6 days. The remaining work will be finished by B alone in:

The perimeter of a right-angled triangle is 60 cm, and its hypotenuse is 26 cm. Find its area? 

A fruit merchant makes a profit of 25% by selling mangoes at a certain price. If he charges Re. 1 more on each mango, he would gain 50%. At first the price of one mango was

If the difference between the compound and simple interest on a certain sum of money for 3 years at 5 % per annum is Rs. 15.25, then the sum is