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Maths Exercices

Percentage of money amounts

What is 60% of $90?

The whole is 90.

The percent is 60%.

Let n represent the part.

Write a proportion and find the cross products to solve for n.

=

100n = 60 × 90

100n = 5,400

100n ÷ 100 = 5,400 ÷ 100

n = 54


60% of $90 is $54.


You could also find the answer by writing and solving an equation:

part = percentage of whole

n = 60% × 90

n = 0.60 × 90

n = 54


60% of $90 is $54.

What is 58% of 808?
Solution: %