Question

If 16 men or 20 women can finish a work in 25 days. How many days will 28 men and 15 women take to finish job

Answer 1

this is ur answer. hope u understood

Answer 2

Answer:

In 10 days will 28 men and 15 women take to finish job.

Step-by-step explanation:

Given : If 16 men or 20 women can finish a work in 25 days.

To find : How many days will 28 men and 15 women take to finish job ?

Solution :

If 16 men or 20 women can finish a work in 25 days.

i.e. 16 men can do a work in 25 days.

16 men can do a work in 1 day is $\frac{1}{25}$

1 men can do a work in 1 day is $\frac{1}{25\times 16}$

1 men can do a work in 1 day is $\frac{1}{400}$

i.e. 20 women can do a work in 25 days.

20 women can do a work in 1 day is $\frac{1}{25}$

1 women can do a work in 1 day is $\frac{1}{25\times 20}$

1 women can do a work in 1 day is $\frac{1}{500}$

Let the amount of work done by men and women in x days,

So, 28 men and 15 women take to finish job in

$28\times \frac{1}{400}\times x+15\times  \frac{1}{500}\times x=1$

$x(0.07+0.03)=1$

$x(0.1)=1$

$x=\frac{1}{0.1}$

$x=10$

Therefore, In 10 days will 28 men and 15 women take to finish job.