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A man is thrice as old as his son. If the man was 42 years old when

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Joined: 18 Jul 2019
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A man is thrice as old as his son. If the man was 42 years old when  [#permalink]

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New post 25 Nov 2019, 07:10
2
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

87% (01:56) correct 13% (01:51) wrong based on 31 sessions

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A man is thrice as old as his son. If the man was 42 years old when his son was born, find the age of the son when the man was seven times as old as the son?

a) 7 years
b) 14 years
c) 12 years
d) 14 years
e) 16 years
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Re: A man is thrice as old as his son. If the man was 42 years old when  [#permalink]

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New post 25 Nov 2019, 10:13
42+m=3m
2m=42, m=21 , 21+42=63
63-x=7(21-x)
6x=84 , x =14
So,21-14=7
Option A

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Re: A man is thrice as old as his son. If the man was 42 years old when   [#permalink] 25 Nov 2019, 10:13
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