a verandhra 1.25m wide is constructed all along the outside of room 5.5 m long and 4m wide . find the cost of cementing the floor of this verandah at the rate of rs 20 per m . for 7 class
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Step-by-step explanation:Area of the room is given by 4 * 5.5 = 22m2
Area of the verandah with room is (5.5 + 1.25 + 1.25) * (4 + 1.25 + 1.25) = 8 * 6.5 = 52
Area of only verandah = 52 - 22 = 30m2
Cost of cementing the floor of the verandah = 15 Rs/m2
Total cost of cementing 30m2 verandah = 30 * 15 = 450 Rs
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