Math, asked by nuzz, 11 months ago

hi
answer the 12th question with steps
pls

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Answered by soumajitjio2138
0
hi your answer is

let the height be x

therefore length =3x
therefore breath =3/2 x

area of whitewashing the room=lateral surface area of the room

therefore lateral surface area
= 2x(3x+3x/2)
=2x*9x/2
=9x²

therefore total cost
= 1.50*9x²

therefore,
1.50*9x²=216
=>x²= 216/1.5*9 =216*10/15*9 = 16
=>x = √16= 4

height = 4 m
length = 12m
breadth = 6m

hope this will help you please mark with the brilliance
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