Question

After 15 years, Mary's age will be four times of her present age. Find her present age.​

Answer 1

Answer:

Plz mark brainiest

Step-by-step explanation:

let her present age be x..after 15 years her age will be 4x that means..

x+15=4x

15=4x-x

15=3x

x=15/3

=5

so her present age is 5 and after 15 years...she will be of 20 i.e 4 times of 5

Answer 2

Step-by-step explanation:

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Let mary present age be 'x'

After 15 years,

Mary age becomes 'x + 15'

Given that after 15 years mary age will be 4 times her present age

So,

x + 15 = 4x

15 = 4x - x

3x = 15

x = 15/3

x = 5

Therefore, mary present age is '5' years