Question 4 - Volume of Cube and Cuboid - Chapter 11 Class 9 Surface Areas and Volumes

Last updated at April 16, 2024 by

Ex 13.5, 4 - Find cost of digging a cuboidal pit 8 m long - Volume Of Cube/Cuboid

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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, 𝑙 = 8 m, b = 6 m and h = 3 m Volume of the cuboidal pit = 𝑙𝑏ℎ = (8×6×3) 𝑚3 = 144 m3 Cost of digging 1 m3 = Rs 30 Cost of digging 144 m3 = Rs (144 ×30) = Rs 4320 ∴ Cost of digging the pit is Rs 4320

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo