Question

Salary of Lilly and Tom are in the ratio of `1:2`. If their salary is increases by `3000` each, the ratio becomes `40:57`. How much is present salary of Tom?

Answer 1

Tom's present salary is `$4434.78`

Explanation:

As the salary of Lilly and Tom in the ratio of `1:2`

let the present salary of Lilly be `x` and that of Tom be `2x`

After their salaries are increased by `3000` each, the ratio becomes

`(x+3000)/(2x+3000)`, but this should be `40:57`

Hence `(x+3000)/(2x+3000)=40/57`

or `57(x+3000)=40(2x+3000)`

or `57x+171000=80x+120000`

or `80x-57x=171000-120000`

i.e. `23x=51000`

and `x=51000/23=2217 9/23=2217.39`

Hence, the present salary of Lilly is `$2217.39` and that of Tom is `2xx2217.39=$4434.78`