作业帮GMAT数学题求解~~
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/15 12:12:32
GMAT数学题求解~~
A store currently charges the same price for each
towel that it sells. Ifthe current price of each towel
were to be increased by $1, 10 fewer of the towels
could be bought for $120, excluding sales tax. What
is the current price of each towel?
(A) $1
(B) $2
(0 $3
(D) $4
(E) $12
有些看不懂 求各位大神帮帮忙~~
A store currently charges the same price for each
towel that it sells. Ifthe current price of each towel
were to be increased by $1, 10 fewer of the towels
could be bought for $120, excluding sales tax. What
is the current price of each towel?
(A) $1
(B) $2
(0 $3
(D) $4
(E) $12
有些看不懂 求各位大神帮帮忙~~
用120块钱去买东西,单价加1块钱后就少买10个
设当前价格为p,根据题目可以列出方程：
120 / ( x + 1 ) = 120 / x - 10
求解方程,得到 x = 3
设当前价格为p,根据题目可以列出方程：
120 / ( x + 1 ) = 120 / x - 10
求解方程,得到 x = 3