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The cost of painting a room consists of two parts. One part is directly proportional...

The cost of painting a room consists of two parts. One part is directly proportional to the area and the other to the square of the length of the room. The cost required to paint a room that measures 20m by 30m is N200 and that of a room that measures 15m by 40m is N256. What is the cost of a table 60 meter square?
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Asked by henry on 22nd February, 2020
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
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