Question

Rani said "if i add a quarter of my number to half of my number, i get same result when i take away 2 from 4/5 times my number. What is the number?

Answer 1

The number is 40....

Cheers

Answer 2

Define x:

Let the number be x

Add a quarter of the number to half of the number

⇒ 1/4 x + 1/2 x = 3/4 x

Take away 2 from 4/5 times the number

⇒4/5 x - 2

Solve x:

3/4 x = 4/5 x - 2

4/5 x - 3/4 x = 2

1/20 x = 2

x = 2 x 20

x = 40

Answer: The number is 40