Question

Find a number, such that one-fourth of the number is 3 more than 7.

Answer 1

Let us take the unknown number to be y; one-fourth of y is `y/4`.

This number `y/4` is more than 7 by 3.

Hence we get the equation for y as `y/4 – 7 = 3`.

To solve this equation, first transpose 7 to RHS We get,

`y/4 = 3 + 7 = 10`.

We then multiply both sides of the equation by 4, to get

`y/4 xx 4 = 10 xx 4`

y = 40........(the required number)