plzz answer .....

Asked by kirtichawla94 | 18th Feb, 2010, 04:52: PM

Expert Answer:

let the original  number of students  be x.

so the expenditure per person will be 240/x

 if the number of students reduces to x-4

 then

 the expenditure per person will be 240/(x-4)

of course in this case the expenditure per head is more than before.

so ATQ,

[240/(x-4)]-[240/x]=5

since the number of students can't be -ve

so

x=16

Answered by  | 18th Feb, 2010, 05:03: PM

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