a door of diamention 13.2cm×200cm is fixed on the wall of diamention 250×200cm. the labour charges for painting per sq m of the walls Rs20.50.Find the total labour charges for painting the wall
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Answered by
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Answer:
Area of wall = l×b = 250×200 = 50000 cm²
Area of door = l×b = 13.2×200 = 2640 cm²
Area will be painted=Area of wall - Area of door
= 50000-2640
= 47360 cm²
Cost of 1cm² = Rs. 20.50
Cost of 47360 cm² = Rs. 970880
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Answered by
1
Answer:
area panting wall =area of rectangular shape-arra of door
=l×b-l×b
=250×200-13.2×200
50000-2640
47360cm
change in m=47360/100
=473.6m
cost of panting wall=473.6×20.50
=Rs9708.8
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