Q14 of 35 Page 74

The height of Chandmari road is to be raised. So, 30 cuboidal holes with equal depth and of equal measure are dug out on both sides of the road and with this soil, the road is elevated. If the length and breadth of each hole are 14 m and 8 m. respectively and if the total quantity of soil required to make the road be 2520 cu m.let us calculate the depth of each hole.

Let the depth of each hole be h.

Given , length of each hole = 14m


breadth of each hole = 8m


total no. of holes = 30


Total quantity of soil = 2520 m3


As, total volume of soil in 30 holes = total quantity of soil


therefore, 30×14×8×h = 2520


h =


h = 0.762 m.


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