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a group of friends goes for dinner and gets bill of Rs 2400
. Two of them says that they have forgotten their purse so
remaining make an extra contribution of Rs 100 to pay up
the bill. Tell the no. of person in that group
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Answer Posted / arun
if 'n' is the total no. of persons,
(1). for 2 persons in 'n' ,(n-2) of them have to pay a
total of (n-2)*100 in extra
(2) so for 'n' persons,(n-2) persons have to pay a total of
n(n-2)*100/2 = 2400
ie n(n-2)=48 =>n=8.
| Is This Answer Correct ? | 66 Yes | 6 No |
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