Question

一支钢笔18.45元,比一支铅笔的10倍少0.5,买一支铅笔和钢笔共多少钱？

Answer 1

一支钢笔18.45元,比一支铅笔的10倍少0.5,买一支铅笔和钢笔共多少钱？

若一支铅笔价格为x
那么 18.45 = 10x - 0.5
10x = 18.95
x = 1.895
18.45+1.895 = 20.845

Answer 2

解，铅笔(18.45+0.5)÷10=1.895(元)
故共1.895+18.45=20.345(元)