The host charges Rs. 6300 for 35 sthdents for 24 days. In how many days will the host charges be Rs. 3375 for 25 students?

1 Answer
Feb 28, 2018

#18# days. Find the individual rate and work backwards.

Explanation:

We know the rate is

Rs. #6300# per #35# students per #24# days

To find the rate per day we divide by #24#. Now the rate is:

Rs. #262.5# per #35# students per day

To find the rate per student we divide by #35#. Now the rate is:

Rs. #7.5# per student per day

Now we work backwards. So for #25# students, we multiply by #25#:

Rs. #187.5# per #25# students per day

So that is Rs. #187.5# per day. If the host charges #3375# then we can find the number of days by dividing #3375# by #187.5#.

So, the number of days is #18#.