Length breadth and height of a room is 10m, 7m and 5m find the cost of painting if if it cost 18 rupees per metre square
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Length breadth and height of a room is 10m, 7m and 5m find the cost of painting if if it cost 18 rupees per metre square
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Answer:
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GIVEN
length :- 10m
Breath :- 7m
height :- 5m
and it charges ₹18 for 5m² paint
so,
Area of room = 2 ( lb + bh + hl )
= 2 [ (10×7) + ( 7×5 ) + (5×10) ]
= 2 [ 70 + 35 + 50 ]
= 2 [ 155 ]
= 310m²
if the 5m² costs ₹18 then how much it cost for 310m² ?
= [tex]\frac{310m²}{5m²}[/tex]
= ₹62
therefore , ₹62 cost for the whole room
[tex]\huge \bf \underline{ \underline\color{silver}{Answer}}[/tex]
[tex]\huge\mathtt{{\color{silver}{₹62}}}[/tex][tex]\huge\color{red}♡[/tex]