Question

2. The difference between a number and its two –fifth is 510. What is 10% of that num​

Answer 1

let suppose the no. x

x-2_x =510

5

LCM of 1 and 5= 5

__5x-2x______=510

5

3_x= 510

5

3x=510×5

3x=2550

x=2_5_5_0

3

x=850