Stefan sells jill a bike for $162 and a helmet for $18. the total cost for jill is 150% of what stefan spent originally to buy the bike and helmet? How much did Stefan spend originally?

Answer 1

First add 162 and 18 to get 180.

Whenever you have a percentage problem, set it up as : a is % of b.

180 = 150% x b

Turn the percentage into 1.5.

180 = 1.5b

Divide both sides by 1.5: b = 120. The original price was $120.