Q8 of 94 Page 222

How many planks of size 2 m x 25 cm x 8 cm can be prepared from a wooden block 5 m long, 70 cm broad and 32 cm thick, assuming that there is no wastage?

We know that,

Volume of cuboid = Length × Breadth × Height


Therefore,


Total volume of the block = (500 × 70 × 32)


= 1120000 cm3


Total volume of each plank = 200 × 25 × 8


= 40000 cm3


Hence,


Total number of planks that can be made =


=


= 28 planks


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