Question

After 12 yrs manju will be three as old as he was 4 yrs ago.Find his present age.

Answer 1

• $\textbf{Let present age of Manju be (M)}$ $\textbf{years}$

» After 12 years manju will be three as old as he was 4 yrs ago.

According to question;

→ (M + 12) = 3(M - 4)

→ M + 12 = 3M - 12

→ M - 3M = - 12 - 12

→ - 2M = - 24

→ 2M = 24

→ M = 24/2

→ $\boxed{M\: =\: 12}$

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$\textbf{Present age of Manju = 12 years}$

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✡ VERIFICATION :

From above calculations we have M = 12

Put value of M in this equation : (M + 12) = 3(M - 4)

=> M + 12 = 3M - 12

=> 12 + 12 = 3(12) - 12

=> 24 = 36 - 12

=> 24 = 24

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