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A man is 4 times as old as his son.
After 16 years he will be only twice as old as his son.
What is the son's present age (in years)?

Class 8Solving Simple EquationsLinear Equations

A8
B16
C9
D7

Step-by-Step Solution

Let son =

x

, man =

4 x

. After 16 years:

4 x + 16 = 2 (x + 16)

, so

4 x + 16 = 2 x + 32

, giving

2 x = 16

and

x = 8

.

Answer: A) 8

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