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3 years ago

How to solve this problem?

Mathematics

1 answer:

anyanavicka [17]3 years ago

8 0

g = number of goblins

w = number of wizards

There are 220 club members altogether, so

g + w = 220

There are 20% more goblins than wizards, so

g = 1.2 w

Substitute this into the first equation and solve for w, then for g.

1.2 w + w = 2.2 w = 220 ==> w = 100

g = 1.2 w ==> g = 120

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