Q15 of 76 Page 18

Given that 1 cubic cm of marble weighs 0.25 kg, the weight of marble block 28 cm in width and 5 cm thick is 112 kg. Find the length of the block.

Given,


Weight of 1m3 marble = 0.25 kg


Weight of marble 28 cm wide and 5 cm thick = 112 kg


Let length of block = l cm


Then volume of block = l×28×5 cm3 = 140 l cm3


Weight of block = 140 l ×0.25


= 112 = 140 l ×0.25


= l =


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