Question

Mohini is $x$ years old.

Express the following in algebraic form: the present age of Mohini's cousin, if her cousin is two years less than one-third of Mohini's age $5$ years ago.

Answer 1

Given, Mohini's present age $=x$ years

her cousin is two years less than one-third of Mohini's age $5$ years ago

Mohini's age $5$ years ago $=$ $x-5$

One-third of Mohini's age $5$ years ago $=\frac{1}{3}\left(x-5\right)$

So, the present age of Mohini's cousin $=[\frac{1}{3}\left(x-5\right)-2]$