Question

there are 20% more goblins than wizards in magic club. There are 220 goblins and wizards all together in magic club. How many goblins are in magic club?

Answer 1

Assume x = goblins, y = wizards

x = y x 120%
x + y = 220

Substitute x = y x 120% into the equation
$y \times 120\% + y = 220 \\ \frac{120y}{100} + y = 220 \\ 1.2y + y = 220 \\ 2.2y = 220 \\ y = 100$

Substitute y = 100 into equation
$x = 100 \times 120\% \\ x = 100 \times \frac{120}{100} \\ x = 120$

There are 120 goblins in the magic club.

Hope this helps. - M

Answer 2

120 is your answer.

Hope this helped!