4 years ago,the ratio of the ages of A and B was 2:3 and after 4 years it becoms 5:7 find their present ages
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answer:52 year
Step-by-step explanation:
Four years ago let the age of
A and B be 2x and 3x years respectively.
According to the question,
2
x
+
8
3
x
+
8
=
5
7
⇒
14x + 56 = 15x + 40
⇒
x = 16
Present age of A = 2x + 4
= 2 × 16 + 4 = 36 years
Present age of B
= 3x + 4 = 3 × 16 + 4
= 52 years
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