A person spends 40% of his monthly income. The monthly income of the person is increased by 15% and his expenditure is decreased by 22%. What is the approximate percentage increase in his savings?

Hitesh is 40 years old and Rohit's age is 60 years, how many years ago his age ratio was 3: 5?

Four coins whose diameter is 12.6 cm are placed in such a way that one coin touches the other coin, find the area between them.

Direction : What value should come in the place of question mark (?) in the following questions?

125% of 2440 – 75% of 1856 = ?

Sandeep's salary is 20% more than that of Aron. If Sandeep saves Rs.720 which is 4% of his salary, then Aron's salary (in Rs.) is

The perimeter of a rhombus is 100 cm, if one of its diagonals is 14 cm. Then the area of the rhombus is 

A , B, and C together can finish a task in 12 days. A is twice as productive as B and C alone can do the task in 36 days. In how many days can A and B do the task if C goes on leave? 

Four numbers are in the ratio 1 : 2 : 3 : 4 . Their sum is 16. The sum of the first and fourth number is equal to: