GRE
简答题
For this question，indicate all of the answerchoices that apply．
Suppose you have two coupons for a certainstore．One gives you 20%off any purchase；the other gives you$20 0ff any purchase of$60 0r more．Forwhich of the following purchase amounts(at that store)would yousave more money with the 20%off coupon than with the$20 0ff coupon?
Suppose you have two coupons for a certainstore．One gives you 20%off any purchase；the other gives you$20 0ff any purchase of$60 0r more．Forwhich of the following purchase amounts(at that store)would yousave more money with the 20%off coupon than with the$20 0ff coupon?
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A，E．
The$20 0ff coupon cannot be used on a$50 purchase，so for that one the 20%off coupon is best．The coupons will be of equal value on a purchase of value x where 0．2x=20．so x=100．Forthe larger amount of$120.the 20%coupon will save more money．
The$20 0ff coupon cannot be used on a$50 purchase，so for that one the 20%off coupon is best．The coupons will be of equal value on a purchase of value x where 0．2x=20．so x=100．Forthe larger amount of$120.the 20%coupon will save more money．
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