the length breadth and height of a room are 5m 4m 3m respectively.find the cost of white washing the inner of the room and ceiling at the rate of rs.50 per square metre.
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Answered by
3
c.s area of room =2h(l+b)
= 2×3(5+4)
= 6×9=54 cm2
total cost = 54×50=2700
= 2×3(5+4)
= 6×9=54 cm2
total cost = 54×50=2700
Answered by
6
Total surface area to be painted = 2(lb/2+bh+lh)
= 2 ( 5*4/2 + 4*3 + 3*5 )
= 2 (20/2 + 12 + 15)
= 2( 37 )
= 74sq mt
Total cost = 74*50 = 3700 /-
check answer
any doubts comment ;))
= 2 ( 5*4/2 + 4*3 + 3*5 )
= 2 (20/2 + 12 + 15)
= 2( 37 )
= 74sq mt
Total cost = 74*50 = 3700 /-
check answer
any doubts comment ;))
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