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Further equations - class-VII
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The ratio of the present age of Manoj to that of Wasim is $3:11$. Wasim is $12\ yr$ younger than Rehana. Rehanas age after $7\ yr$ will be $85\ yr$. What is thepresent age of Manojs father, who is $25\ yr$ older than Manoj?
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A
$43\ yr$
💡 Explanation:
the present age of Wasim $=11x$
present age of Manoj $=3x$
present age of Rehana $=11x+12$
present age of Manoj's father $=3x+25$
after $7$ years, Rehana's age is $85$ years.
$11x+12+7=85$
$ 11x=66$
$x=6$
age of Manoj's father $=3 \times 6 + 25 = 43$ years.