AMC 10 Step by Step
2014 AMC 10AProblem 11P11-15~3 minPrint

A customer who intends to purchase an appliance has three coupons, only one of which may be used:

Coupon 1: 10%10\% off the listed price if the listed price is at least $50\$50

Coupon 2: $20\$20 off the listed price if the listed price is at least $100\$100

Coupon 3: 18%18\% off the amount by which the listed price exceeds $100\$100

For which of the following listed prices will coupon 11 offer a greater price reduction than either coupon 22 or coupon 33 ?

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Problem © Mathematical Association of America (MAA), American Mathematics Competitions. Reproduced for non-commercial educational use. Solution and commentary are original to this site.