SOLUTION: My daughter asked me how old I am. I said in 20 years time I will be twice the age I was 12 years ago. How old am I?
Algebra.Com
Question 186033: My daughter asked me how old I am. I said in 20 years time I will be twice the age I was 12 years ago. How old am I?
Found 2 solutions by solver91311, Edwin McCravy:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Age now: x
Age 20 years from now: x + 20
Age 12 years ago: x - 12
Twice age 12 years ago: 2(x - 12)
Solve:
 = x + 20)
John
Answer by Edwin McCravy(20056) (Show Source): You can put this solution on YOUR website!
My daughter asked me how old I am. I said in 20 years time I will be twice the age I was 12 years ago. How old am I?
My daughter asked me how old I am.
I said...
I am N years old now and
...in 20 years time I will be...
N + 20, which is
...twice the age I was 12 years ago...
which was N - 12, and twice that is 2(N - 12)
Therefore N + 20 must equal to 2(N - 12).
So we have the equation:
N + 20 = 2(N - 12)
Can you solve that?
Answer: The mother is 44 years old.
Checking: 12 years ago she was 32 and in 20 year's
time she will be 64, which is twice 32. So it checks.
Edwin
RELATED QUESTIONS
my daughter asked how old i am, i answered, 'in 20 years i'll be twice as old as i was 12 (answered by Edwin McCravy)
my daughter asked how old i am. i answered '' in 20 years , I'll be twice as old as i was (answered by stanbon)
In 8 years time I will be twice the age I was 3 years ago ... How old am I... (answered by solver91311)
IN 8 years time I will be twice the age I was 3 years ago. How old am I now?
How will (answered by mananth)
i am 3 times as old as my daughter. in 12 years time i will only be twice as old as my... (answered by CubeyThePenguin)
In 12 years time,I shall be three times the age i was 10 years ago, how old am... (answered by mathie123,Maths68)
In 12 years time I shall be the age I was 10 years ago. How old am... (answered by Alan3354)
John was asked how old he is. He said in 2 years I will be twice as old as I was 5 years... (answered by jim_thompson5910,algebrahouse.com)
20 years ago, I was half the age I will be in 10 years. How old am I... (answered by jim_thompson5910)