Question

Five workers take 12 days to weed a field. How many days would 6 workers take? How many would 15 take?

Answer 1

6 workers-10days
15 workers-4 days

Answer 2

if 5 workers take 12 days
then , 1 worker will take = 5×12=60days
so ,6 workers will take =60÷6=10
and that of 15 workers will take = 60÷15 = 4