A door of 4 x 2 m2 and two windows
each of 3 x 2 m2 are fitted in a wall. The
length and breadth of a wall are 15 m
and 10 m respectively. Find the cost of
white washing the wall, if the rate of
white washing the wall is rupees 12 per m2.
Answers
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Answer: Rs 1560
Step-by-step explanation:
The area of wall=l×b
=15×10
=150m^2
The area of two windows=2×(l×b)
=2×(3×2)m^2
=12m^2
The area of door=l×b
=4×2
=8m^2
The area that will not be white wash=8+12
=20m^2
The area that will be white wash=150-20
=130^2
The cost of white washed=130×12
=Rs 1,560
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