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Answers
Answer:
Rs.2278.4
Explanation:
The dimensions of the room are 9 m × 8 m × 6.5 m .
Dimensions of the door = 2 m × 1.5 m
Dimensions of the windows = 1.5 m × 1 m
Surface area of the room = 2 lw + 2wh + 2lh
= 2 × 9 × 8 + 2 × 8 × 6.5 + 2 × 9 × 6.5
= 365 Sq.m
Area of a door = 2 × 1.5 = 3 Sq. m
Area of two windows = 2 ( 1.5 × 1 ) = 3 Sq. m
Area to be white washed = 365 - 3 - 3 = 356 Sq. m
Cost = 356 × 6.4
= Rs. 2278.4
So the cost for white washing is Rs.2278.4
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Answer:
total surface area =2[(lb)+(bh)+(hl)]
=2[9×8+8×6.5+6.5×9]
=2(72+52+58.5)
=2×182.5
=365m²
TSA-(two windows+one door)
area of the door=2×1.5
=3m²
area of two windows=2×1.5×1
=3m²
365-(3+3)
=365-6
=359m²
we have to exclude floor also. Because we don't paint floor.
359-(9×8)
=359-72
=287m²
cost of painting per my=6.4 RS
cost of painting for 287m²=6.4×287
=1836.8 Rs
Explanation:
hope it works................™