The walls and roof of a room are 10 m long,8 m wide and 10 m
in height is to be painted.How much will it cost at Rs.5 per
sq.foot?
A.1600 B.2000
C.2200 D.2400
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Answer / thiru
Guys actually the cost should be given as Rs.5 per sq.mts
then the answer will be Rs.2200
The walls are 10mts long and 10mts high.So out of 4 walls 2
are of 10*10=100sq.mts area (length * height)
2*100=200sq.mts
Two walls are of 8*10 = 80(width*height)
2*80=160
Roof is 8*10=80sq.mts (length*width)
Total surface area : 200+160+80 = 440sq.mts
Total cost: 440*5= Rs.2200
| Is This Answer Correct ? | 34 Yes | 3 No |
Answer / koustav chakraborty
the ans wiil be 2200.cause....
The painted wall including roof is 5 therefore the the equation is (width*long)=(8*10)=80
as for 5 painted wall including roof is (80*5)=400
then the painted hight of the 4 wall is (4*10)=40
as for total painted sq.ft=(400+40)=440
and as for cost per sq.ft the cost will be 440*5=2200
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / ranjith kumar
10 meter long and 8 meter wide
so 10*8=80
four sideof wall should be painted
so 80*4=240
height of the wall is 10 meter
240*10=2400
| Is This Answer Correct ? | 21 Yes | 23 No |
Answer / coolsummer
Walls: 10m X 8m x 4 (4 walls in a room): 320 sq ft.
Roof: 10m x 8m = 80sq ft
Painting cost @5/sq ft:
(320x5) + (80x5)= 1600 + 400
=2000
| Is This Answer Correct ? | 7 Yes | 9 No |
Answer / vijay
hey guys, a room as 4 walls. so it should have length and breadth because its a two dimension. l*b = 10*8=80, 80*4 walls = 320, then one roof: same 10*8=80. finally 4 walls and 1 roof = 320+80=400 now it cost rs.5, so 400*5=2000. 2000 is answer.
| Is This Answer Correct ? | 0 Yes | 2 No |
Answer / pratik
hey cost is given per foot...
so first convert into m^2...
2400
| Is This Answer Correct ? | 1 Yes | 5 No |
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