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 English interview questions  English Interview Questions (454)
 General Aptitude interview questions  General Aptitude Interview Questions (1887)
 Puzzles interview questions  Puzzles Interview Questions (459)
Question
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
 Question Submitted By :: Guest
I also faced this Question!!     Rank Answer Posted By  
 
  Re: 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
Answer
# 1
8 persons 
Is This Answer Correct ?    61 Yes 2 No
Guest
 
  Re: 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
Answer
# 2
8 Persins.. 
Is This Answer Correct ?    25 Yes 6 No
Aravind
 
 
 
  Re: 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
Answer
# 3
6 persons 
Is This Answer Correct ?    5 Yes 32 No
Subbu
 
  Re: 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
Answer
# 4
8 PERSONS

Two forgotten to bring their purse=8-2=6
6*300=1800
6*100=600
Total=1800+600=2400
 
Is This Answer Correct ?    28 Yes 9 No
Sai
 
  Re: 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
Answer
# 5
Let 'x' be the number of perons in the group and let 'y' be
amount per head which they have to pay.
Then xy = 2400.
or y = 2400/x
Since two friends have forget the purse, x-2 persons should
share the total amount(2400).
If they share, they have to make an extra contribution of
Rs 100 to pay up the bill
That is x-2 persons should pay y+100 each
or (x-2)(y+100) = 2400
or y+100 = 2400/(x-2)
or y = 2400/(x-2) - 100
Therefore we have got two equations namely,
y= 2400/x and y = 2400/(x-2) - 100
Comparing these two, we get
2400/x = 2400/(x-2) - 100
Solving this we get
x^2 - 2x -48 = 0
or (x-8) (x+6) = 0
or x = 8 or x = -6
Since 'x' denote the number of persons, it should be
positive.
So, x = 8.
 
Is This Answer Correct ?    106 Yes 1 No
Saravanan.p
 
  Re: 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
Answer
# 6
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 ?    32 Yes 1 No
Arun
 
  Re: 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
Answer
# 7
8 
Is This Answer Correct ?    4 Yes 6 No
Sumit Kumar
 
  Re: 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
Answer
# 8
let the no.of persons=x
then
100(x-2)+(x-2)*2400/x=2400
100x-200x+(2400x-4800)/x=2400
.
.
.
.
==> (x-8)=0 or (x+6)=0
finally either x=8 or -6
therefore the no.of persons = 8
 
Is This Answer Correct ?    5 Yes 3 No
Rajkumar
 
  Re: 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
Answer
# 9
2400=3x

x=2400/3
x=8
ans:8 students
 
Is This Answer Correct ?    5 Yes 3 No
Praveen
 
  Re: 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
Answer
# 10
by trail & error meathod

300 300 300 300 300 300 300 300

(300+100) (300+100)(300+100)(300+100) (300+100) (300+100)

total=2400

ans 8 persons
 
Is This Answer Correct ?    1 Yes 4 No
Ashok
 

 
 
 
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