Mathematics, 08.10.2020 05:01 kamdenburr

KALON AND HIS FRIEND CAN CLEAN A 20 FOOT CHIMNEY IN ONE 1 5/7 HOURS. kALON CAN CLEAN A CHIMNEY IN 4 HOURS. HOW LONG DOES IT TAKE MY FRIEND TO CLEAN A CHIMNY BY HIMSELF?

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KALON AND HIS FRIEND CAN CLEAN A 20 FOOT CHIMNEY IN ONE 1 5/7 HOURS. kALON CAN CLEAN A CHIMNEY IN 4...