the length breadth nd height ofa room are 5, 4nd 3 m. find the cost of the white washing the walls of the room nd the ceiling qt the rate of ₹7.50 m square
Answers
Answered by
1
Answer:
hey mate !!!!!!!!!
Step-by-step explanation:
Area of 4 walls of room = 2h(l+b)
= 2×3(5+4)
= 54 sq. m
Area of ceiling = l×b
= 5×4 = 20 sq. m
Area of whitewashing = 54+20=74sq.m
Cost of whitewashing = 7.50×74 = Rs. 555
Hope it's helpful ^_^
Answered by
0
Answer:
70500 Rupees
Step-by-step explanation:
length =5m
breadth=4m
height =3m
T.S.A of the room =2 (lb+bh+lh) (it is cubiod)
= 2(5×4+4×3+5×3)meter square units
= 2(20+12+15)
= 2(47)
= 94m^2
for meter^2 cost is =RS: 7.50
cost for 94m^2 =94×750
=RS: 70500
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