Question

a pit is 10m long,4m wide,10cm deep.calculat the no. of planks each with dimensions 5m×25cm×10cm that can be stored in pit​

Answer 1

Step-by-step explanation:

$Dimensions \: of \: pit \\ = 10 \: m \times 4 \: m \times 10 \: cm \\ =1000 \: cm \: \times 400 \: cm \times 10 \: cm \\ Volume \: of \: pit \\ = 1000 \: \: \times 400 \: \times 10 \: \\ = 4000000 \: {cm}^{3} \\ Now, \\ </p><p>Volume \: of \: a\:plank= 500 \: \: \times 25 \: \times 10 \\ =125000 \: {cm}^{3}\\</p><p>Number \:of \: planks\\</p><p>=\frac{Volume \: of \: pit }{Volume \: of \: a\:plank}\\</p><p>=\frac{4000000} {125000}\\</p><p>=32$

Thus, 32 planks can be stored in the pit.