A self-employed man bought 40 sets of clothes and sold 30 sets at a price higher than the purchase price in 40 yuan. Later, due to the change of seasons, the remaining 10 suits were sold at 60% off th
A self-employed man bought 40 sets of clothes and sold 30 sets at a price higher than the purchase price in 40 yuan. Later, due to the change of seasons, the remaining 10 suits were sold at 60% off the original price.
Solution: Let the purchase price of each suit be X yuan.
(x+40)×30+(x+40)×0.6× 10 = 4080
30x+ 1200+6x+240=4080
36x=2640
X≈73.33 (yuan)
A: The purchase price of each suit is about 73.33 yuan.