Question

mona is 20% younger than neetu how much percent is neetu older than mona?? how is it 25%

Answer 1

Let the age of neetu is x years
age of mona = x - 20% of x = x - 0.2x = 0.8 x years
difference in age is (x -0.8x) = 0.2 years
neetu is older than mona = [(difference in age)/(age of mona)]×100
                                            = (0.2/0.8)×100 = 25%

Answer 2

Let Neetu's age = 100 years then, Mona's age = 100 - 20 = 80 Difference of ages = 100 - 80 = 20 years