Two numbers are such that the ratio between them is 4:7 . If each is increased by 4, the ratio becomes 3:5 . The larger number is :

A person's present age is two-fifth of the age of his mother. After 8 years , he will be one-half of the age o...

If 25% of a number is subtracted from a second number, the second number reduces to its five-sixth .What is th...

The ages of A and B are in the ratio 3:1 . Fifteen years hence , the ratio will be 2:1 . Their present ages ar...

Aunik, Kamal and Jamal invested TK. 8000, TK. 4000 and TK. 8000 respectively in a business . Aunik left after...

15 men take 21 days of 8 hours each to do a piece of work. How many days of 6 hours each would 21 women take ,...

A is 30% more efficient than B . How much time will they, working together , take to-complete a job which A al...