PSLENeave bought one hi-fi system for $196 after a discount of 30%.
- What was the price of the hi-fi system before discount?
- He paid $112 for a projector. The total discount for the hi-fi system and projector was $132. What was the percentage discount given for the projector?
(a)
Price of the hi-fi system after the discount in percentage
= 100% - 30%
= 70%
70% of the price of the hi-fi system = 196
1% of the price of the hi-fi system = 196 ÷ 70 = 2.8
100% of the price of the hi-fi system = 100 x 2.8 = 280
Price of the hi-fi system before the discount = $280
(b)
Discount of the hi-fi system
= 280 - 196
= $84
Discount of the projector
= 132 - 84
= $48
Original price of the projector
= 112 + 48
= $160
Percentage discount of the projector
=
48160 x 100%
= 30%
Answer(s): (a) $280; (b) 30%