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Last updated at May 29, 2018 by Teachoo
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Ex 13.5 , 4 Find the cost of digging a cuboidal pit 8 m long, 6 m broad and 3 m deep at the rate of Rs 30 per m3. Here, ๐ = 8 m, b = 6 m and h = 3 m Volume of the cuboidal pit = ๐๐โ = (8ร6ร3) ๐3 = 144 m3 Cost of digging 1 m3 = Rs 30 Cost of digging 144 m3 = Rs (144 ร30) = Rs 4320 โด Cost of digging the pit is Rs 4320
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