Question

A music store marks up the instruments it sells by 30%

a, if the store bought a guitar for $45, what will be its store price
b. If the price tag on a trumpet say $104, how much did the store pay for it?

Answer 1

A. $58.50, B. $80

Explanation:

mark up percentage
`(store price - actual price)/(actual price)` x 100

30 x 45 = 100SP - 4500

5850 = 100SP

Store Price > therefore, $ 58.50

A. $58.50

Actual Price :

130 AP = 10400 - 100AP

AP > $80

B. $80