Question

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

Answer 1

We know that volume of cuboid = length × breadth × height

Volume of the block = 500 × 70 × 32 = 1120000 cm³

Volume of each plank = 2 × 25 × 8= 400 cm³

Therefore, total number of planks that can be made

= Volume of the block/ volume of the each plank

= 1120000/400

= 2800 planks