The present age of A and B are in the ratio 5: 4. After 10 years the ratio becomes 7: 6. Find the present age of A.

If $$p×q=p+q+{p\over q}$$, the value of 8 × 2  is : 

The median of a set of 11 distinct observations is 73.2. If each of the largest five observations of the set is increased by 3, then the median of the new set:

  $$25\% \ of (50\% \ of \ 30\% \ of \ 150)\over 40\% of \ 2250$$ is equal to:

What is the area of the largest triangle that can be fitted into a rectangle of length 'l' units and width 'w' units?

25.6% of 250 +√ ? = 119

If the height of the cylinder is 4 times its circumference, what is the volume of the cylinder with respect to its circumference c?

Ramiya got married 8 years ago. Her present age is 6/5 times her age at the time of her marriage. Ramiya’s brother was 10 years younger than her at the time of her marriage. What is the ratio of Ramiya’s present age and her brother’s age at the time of her marriage?