Question

How Many Planks Of Size 2m×25cm×8cm Can Be Prepared From A Wooden Block 5m Long,70cm board and 32cm Thick , assuming that there is no wastage?​

Answer 1

Answer:

So, the number of planks of dimension $2m\times 25cm\times 8cm$ to build a wooden block of dimension 5m long, 70cm broad and 32 cm thick is 28. Hence, the answer is 28.

Step-by-step explanation:

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Answer 2

Size of plank: 2m×25cm×8cm or 200cm×25cm×8cm

Size of wooden block: 5m×70cm×32cm or 500cm×70cm×32cm

volume of cuboid1 = l × w × b

= 200 * 25 * 8 = 40000 cm^3

volume of cuboid2 = l × w × b

= 500 * 70 * 32 = 1120000 cm^2

No. of planks that fit in wooden block

= 1120000/40000

=28