Question

if 20 men can complete a work in 8 days then 10 men can complete half of that work in (a) 32 days (b) 8 days (c) 10 days (d) 2 days​

Answer 1

Answer: 10 men can complete half of that work in 2 day's.

Please see the attached document for step by step explanation.

Step-by-step explanation:

Answer 2

Given: $20$men can complete a work in $8$days.

We have to find the number of days required for $10$men to complete half of that work.

We are solving in the following way:

Let the number of days taken by $10$men will be'$x$'

we have,

$20$men can complete work in $8$days.

From the given statement, we can write:

$\frac{20}{10} =\frac{8}{x}$

$=>20\times x=8\times10\\=>20x=80\\\\=>x=\frac{80}{20} \\\\=>x=4$

Hence, $10$men can complete work in $4$days.

Now, the number of days required to $10$men to complete half of that work will be:

$=>\frac{x}{2} \\\\=>\frac{4}{2} \\\\=>2$

Hence, $10$men will take $2$days to complete half of that work.