Question

70 men constructed 150 meter long wall in 12 days so as hoy many person construct 600 meters long wall in 30 days

Answer 1

112 men construct 600 meters long wall in 30 days.

What is Time and Work formula?

$\frac{M_1\times D_1}{W_1}=\frac{M_2\times D_2}{W_2}$

We can find the number of persons who can construct 600 meters wall as shown below:

Here, $M_1=70$

$D_1=12$

$W_1=150$

$W_2=600$

$D_2=30$

We have to find $M_2$

Putting in formula

$\frac{70 \times 12}{150}=\frac{M_2\times 30}{600}$

$M_2=\frac{70\times 12\times 600}{150\times 30}$

$M_2=112$

Hence, 112 men can construct 600 meters wall in 30 days.

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