Question
Riordan, Ken, Ben and Carl bought a portable air-conditioner for their aunt. Riordan paid 13 of what the rest paid. Ken paid 15 of what the rest paid. Ben paid 17 of what the rest paid. Carl paid $15 more than Riordan. How much did the portable air-conditioner cost?
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Riordan, Ken, Ben and Carl bought a portable air-conditioner for their aunt. Riordan paid 13 of what the rest paid. Ken paid 15 of what the rest paid. Ben paid 17 of what the rest paid. Carl paid $15 more than Riordan. How much did the portable air-conditioner cost?