Rahim and Karim donated Tk. 100. each in charity . Karim gives each tk. 1 more than Rahim and Rahim distributes money to 5 more people than Karim . How many people are there in this charity ?

A square is inscribed in a circle of diameter 2 a sand another square is circumscribing circle. The difference...

The income of 'A' is 20% higher than that of 'B' . The income of 'B' is 25% less than of 'C' What percent less...

is equal to -

There are n students in a school . If r% among the students are 12 years or younger, which of the following ex...

125 gallins of a mixture contains 20% water , What amount of additional water should be added such that water...

The sum of squares of two numbers is 80 and the square of difference between the two numbers is 36. Find the p...