Question

Pls answer this for me. How many paving stones, each 1m long and 80cm wide, are needed to cover a compound 13.6m long and 11m wide?​

Answer 1

Answer:

187 paving stones are needed

Step-by-step explanation:

Given

Paving stone

$Length = 1m; Width = 80cm$

Compound

$Length = 13.6cm; Width = 11m$

Required

Number of wires to cover the compound

Area is calculated as:

$Area = Length * Width$

For the paving stone, we have:

$A_1 =1m * 80cm$

Convert cm to m

$A_1 =1m * 0.80m$

$A_1 =0.8m^2$

For the compound, we have:

$A_2 = 13.6m * 11m$

$A_2 = 149.6m^2$

Divide the area of the compound by the area of the paving stone

$n = \frac{A_2}{A_1}$

$n = \frac{149.6}{0.8}$

$n = 187$