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finlep [7]
4 years ago
15

A man is four times as old as his son. In 3 years time, the father will be three times as

English
1 answer:
natka813 [3]4 years ago
5 0

Answer:The son is 6, the father is 24.

Explanation:

Let the man's age by M and the son's age be S.

Right now M = 4S

In three years

M + 3 = 3(S + 3)

So you put the 4S in to substitute for the M.

4S + 3 = 3(S + 3)

4S + 3 = 3S + 9

S = 6

If the son is 6, the father must be 24.

We can check this by adding three to both ages. Then, the son will be 9 and the father will be 27, which is three times 9.

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Another way to think of this sentence is like this: Marty is worried and unsure of how to get a good deal, so he will ask his parents for advice.

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