Question

好的加30分1.某种产品因标价为226元,先打七折销售可获利135%,这种产品的成本价是多少?2.某种商品因换季准备打折

Answer 1

1.226*0.7/(1+1.35) = 67.32

2.(20+25)/(0.9-0.75)=300

3.24*1.2/0.9=32

4.2000*1.05/3000=0.7

5.780*0.9-30-10=662