Question 266209: if you are 8 years old and you younger brother is half your age, when will you be three times his age Found 2 solutions by poojitha1994@gmail.com, ankor@dixie-net.com:Answer by poojitha1994@gmail.com(1) (Show Source):
You can put this solution on YOUR website! let my brother's age be x
my age will then be 3x
our age difference is 4 [as per the question]
so 3x-x=4
2x=4
x=2
equating this we get ,
my age is 6 and my brother's is 2.
You can put this solution on YOUR website! if you are 8 years old and your younger brother is half your age,
when will you be three times his age?
:
Let y = no. of years for this to be true
:
8 + x = 3(4 + x)
8 + x = 12 + 3x
8 - 12 = 3x - x
-4 = 2x
x =
x = -2 yrs, negative mean it happened in the past, 2 years ago
:
Check this, 2 yrs ago you were 6, and 2 yrs ago brother was 2
At that time you were 3 times his age
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