Julian and Riordan went to buy stereo systems at a sale. The usual price of 1 stereo system was $1100 each.
SALEBuy 1 stereo system at 5% discount
Buy 2 or more stereo systems at 20% discount each
- Julian bought 1 stereo system. How much did he pay?
- What is the maximum number of stereo systems Riordan can buy if he has $6000?
(a)
Discounted price of 1 stereo system in percent if only 1 was bought
= 100% - 5%
= 95%
100% of 1 stereo system = 1100
1% of 1 stereo system = 1100 ÷ 100 = 11
95% of 1 stereo system = 95 x 11 = 1045
Amount that Julian paid for 1 stereo system = $1045
(b)
Discounted price of 1 stereo system in percent if more than 1 was bought
= 100% - 20%
= 80%
80% of 1 stereo system = 80 x 11 = 880
Amount that Riordan paid for 1 stereo system = $880
Maximum number of stereo systems that Riordan can buy if he has $6000
= 6000 ÷ 880
= 6 r 720
Answer(s): (a) $1045; (b) 6