Plzz solve this question
Example 20 plzz it is urgent
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Plzz solve this question
Example 20 plzz it is urgent
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Answer:
lateral surface area of the room = area of walls
= 2(l+b) x h = 2(17) x 6.5 = 221 sq metre
area of 3 window =3 x l x b =3 x 1.5 x 1 = 4.5sq metre
area of door = l x b =2 x 1.5 = 3 sq metre
area of white washing=221-(4.5+3)=213.5 sq metre
so the cost of white washing the walls
= 213.5 x 3.8
= 811.3 rupees...
hope this will help you