Brainteasers are always interesting and fun to solve. Here is another brainteaser which will test your math skill. Let’s see if you can solve this brainteaser and find the age of Molly.
Molly’s Age BrainTeaser
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MOLLY’S AGE
There are four children in a family:
Two girls, Amanda and Molly, and two boys, Pete and Will.
Molly is three years older than Amanda.
The total of the boys’ ages is the same as the total of the girls’ ages.
Will is twice as old as Pete.
Four years ago, Will was twice as old as Amanda was then.
How old is Molly?
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Molly’s Age BrainTeaser Answer:
12 Years
Explanation:
There are 4 Children Amanda(A), Molly(M), Pete(P), Will(W). Equations would be like below as per given hints.
1. Molly is three years older than Amanda.
M=A+3
2. The total of the boys’ ages is the same as the total of the girls’ ages.
P+W=M+A
3. Will is twice as old as Pete.
W=2P
4. Four years ago, Will was twice as old as Amanda was then.
W-4=2(A-4)
There are 4 constants and 4 equations. When you solve these equations, you’ll get result as
W=14
P=7
M=12
A=9
So Molly’s Age is 12 years.
