Question

If 25 men can reap the feild in 8 days in how many days can 20 men reap ?

Answer 1

this is

the methods to do

Answer 2

* as we know when people will increase then day will decrease therefore it is indirect variation.
where - k = x.y
A.T.Q
X= number of men = 25
y = number of days = 8
k = 25×8=200
now, number of days 20 men will take to reap the field : let the number of day be x
k=x.y
200=20.x
X=200÷20
x= 10
number of days 20men will take to reap the field = 10days