1.)The marked price of a television is set at a profit of 20%.Then it is sold at a discount of 20% and the loss is $64. Find the cost price of the television.
2.)A department store sells a bag and a swim suit at a profit of 30% and 40% respectively.The marked price of the bag is higher than that of the swim suit by $50.
part1 and part 2 must be answered.
Maths questions??(6)part 1
2006-12-08 4:18 am
回答 (2)
2006-12-08 4:25 am
1) Cost price
= loss/ loss percentage
= 64 / (20%x20%)
= 64 / 0.04
= 1600
= loss/ loss percentage
= 64 / (20%x20%)
= 64 / 0.04
= 1600
2006-12-08 4:24 am
1
let the cost price of the television
then
[(1+20%)(1-20%)x-x]=-64
0.96x-x=-64
-0.04x=-64
x=1600
the cost price of the television is 1600
let the cost price of the television
then
[(1+20%)(1-20%)x-x]=-64
0.96x-x=-64
-0.04x=-64
x=1600
the cost price of the television is 1600
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