Question

After 15 years Mary agewill be four times of her present age find the present age

Answer 1

Answer:

MARY'S PRESENT AGE IS 5 YEARS.

Step-by-step explanation:

The explaination is given in figure.

HOPE YOU UNDERSTAND IT.

Answer 2

Answer:

5 years

Step-by-step explanation:

let mary' s present age be x

after 15 years =x+15

which is equal to 4 times her present age

therefore

x+15 =4x

15=4x-x

15=3x

15/3=x

5=x