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Maths Exercices
Percent of a number: word problems

A baseball pitcher won 80% of the games he pitched. If he pitched 35 ballgames, how many games did he win?

The whole is 35.

The percent is 80%.

Let n represent the part.

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


100n = 35 ×80

100n = 2,800

100n ÷ 100 = 2,800 ÷ 100

n = 28

80% of 35 is 28.

28 games.

Julian and Anthony watched as the city council voted on a new tax. The council has 70 members and 40% of the council members voted in favor of the new tax. How many members voted in favor of the tax?