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The cost of painting a room consisting of 2 parts,one part is directly proportional to...

The cost of painting a room consisting of 2 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 measure 20mby30m is 200 and that of a room that measures 15mby40m is 256.what is the cost of painting a room 60m²?
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Asked by Joyce on 1st April, 2022
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709