Question

if 10 workers clean field in 40 days how many days required to clean the field by 20 workers ?​

Answer 1

use direct and indirect method in maths

Answer 2

Answer:

10 workers can do it in 40 days

so one worker can do it in 40 into 10 days is equal to 400 days

now 20 workers can do it in 400 divided by 20 days

=20 Days Ans