Math, asked by Anonymous, 1 year ago

the length ,breadth and height of a room are 5 m,4m, 3m respectively.find the cost of white washing the walls and the ceiling of the room at the rate of Rs.7.50 per meter square

Answers

Answered by victory1venkatesh
2
area = 20 m^2
Total cost = rs.150

nithishajeri: I think the answer is Rs.450
victory1venkatesh: see rate is given per cm² so it can't be volume. when it is volume, 450 is correct. per m² is given no , so we have to take area
nithishajeri: Ok.Thanks
Anonymous: answer is 555
Anonymous: Yes
Anonymous: answer is555
Anonymous: I solved
Anonymous: my answer came
Answered by mathsolverayush
1
area of the wall to White washing=area of four wall+area of ceiling
=2h(l+b)+l*b
=2*3(5+4)+5*4
=6*9+20
=54+20
=64m2
cost of white washing=7.50*64=Rs480
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