Ratio of present age of m and n is 2:3 and the ratio of m and n after 5 years is 3:4 , Then the present age of m is ______ and n is ______ respectively.
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Step-by-step explanation:
Let the present ages of M and N be 5x years and 3x years respectively.
Given (5x−4):(3x+4)=1:1 ⇒ 5x−4=3x+4
⇒2x=8⇒x=4
∴ Present ages of M and N respectively are (5×4) years and (3×4) years i.e., 20 years and 12 years
∴ Required ratio =
12−4
20+4
=
8
24
=
1
3
=3:1
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