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InterviewSolution
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I want to ask 13.1 question 3.. please explain |
| Answer» Given: perimeter of rectangular wall=2(l+b)=250m (1)Now area of the four walls of the room=total cost to paint walls of the room ________________________________Cost to paint 1m² of the wall =15000 = 1500 m² (2)________ 10Therefore, area of the four walls = lateral surface area 2(bh+hl) = 2h(b+l) =1500 250×h = 1500 (from equation 1 & 2) h = 1500 ________ =6m 250 Hence, required height of the hall is 6m. | |