8 men or 12 women can do a work in 10 days. In how many days can 4 men and 4 women do the same work?

12

8 men or 12 women can do a work in 10 days

That means , 8 men = 12 women

2 men = 3 women

Now,

4 men + 4 women

=  2 × 3 women + 4 women

= 6 women + 4 women

= 10 women 

As, 12 women can complete the work in 10 days.

So , Total work = 12 ×10 = 120 unit

Time taken by (4 men + 4 women )10 women  to complete the work = \(\frac{120}{10}\)

= 12 days