Question

A coin is made from copper and nickel.

84% of its weight is copper.
16% of its weight is nickel.

Find the ratio of the weight of copper to the weight of nickel.
Give your ratio in its simplest form.

Answer 1

the correct answer is 21:4.

Explanation:

the original ratio is 84:16 but you divide 84 by 4 and 16 by 4 and you get 21:4