Hi,

Let x represent Johnr's age   ⇒   is Margaret's age

Question States*** in 15 years...

 3x + 15  = 2(x+15)

   3x + 15 = 2x + 30

        x = 15, John's age.  Margaret is 45

CHECKING our answer*** In 15 years, Margaret will be twice John's age.

  60= 2•30

Wish You the Best in your Studies. 

RELATED QUESTIONS

John’s father is four times as old as John. John is three years older than his sister... (answered by Maths68)

Reex John’s father is five times older than Reex John and Reex John is twice as old as... (answered by josgarithmetic,greenestamps)

at the moment john is 5 years older than mary. in seven years mary age will be 3/4 of... (answered by lwsshak3)

John is 7 times older than Sally in 10 years their combined age will be 71. How old is... (answered by josmiceli,lenny460)

Michael is three times as old as Margaret, and in 6 years he will be twice as old as her.  (answered by josgarithmetic,addingup)

Alice is 8 years older than her brother john. in 5 years she will be twice as old as... (answered by Earlsdon)

John is 16 years old and his mom is 45 years old. In how many years will his mom's age be  (answered by ewatrrr)

Can you please help me solve this problems:

1.)  Erwin is 5 times older than john and... (answered by mangopeeler07)

John is   7   years older than his sister   Mary   Grace.   In   10   years   John will... (answered by josgarithmetic)