Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   ERRORS new

 Categories >> Aptitude Questions >> General Aptitude

 English Interview Questions (464) General Aptitude Interview Questions (1894) Puzzles Interview Questions (460)
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 :: General-Aptitude
I also faced this Question!!     Answer Posted By

# 1
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

# 2
8 persons
 Is This Answer Correct ? 61 Yes 2 No
Guest

# 3
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

# 4
8 Persins..
 Is This Answer Correct ? 25 Yes 6 No
Aravind

# 5
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

# 6
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

# 7
2400=3x

x=2400/3
x=8
ans:8 students

 Is This Answer Correct ? 5 Yes 3 No
Praveen

# 8
suppose 8 person goes for dinner and gets bill of 2400
each person gets 300
8*300=2400
two of them forgotten purse
then
8-2=6
6*300=1800
extra contribution 100 of 6 person
6*100=600

1800+600=2400
hence ans is 8 person

 Is This Answer Correct ? 0 Yes 0 No
Nitin R

# 9
8
 Is This Answer Correct ? 4 Yes 6 No
Sumit Kumar

# 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

  Question Asked @ Answers Other General Aptitude Interview Questions if 2^51 is 8 then 2^48 is ? 3 Pls send me last 3years questions of Karur Vaisya Bank Karur-Vysya-Bank-KVB 1 The Youngest prime minister of India _____________ 5 Mr. Beans visited a magic shop and bought some magical marbles of different colours along with other magical items. While returning home whenever he saw a coloured light, he took out marbles of similar colours and counted them. So he counted the pink coloured marbles and found that he has bought 25 of them. Then he counted 14 green marbles and then 21 yellow marbles. He later counted 30 purple coloured marbles with him. But when he reached a crossing, he looked at a red light and started counting red marbles and found that he had bought 23 Red marbles. As soon as he finished counting, it started raining heavily and by the time he reached home he was drenched. After reaching home he found that the red, green and yellow marbles had magically changed colours and became white, while other marbles were unchanged. It will take 1 day to regain its colours, but he needs to give atleast one pair of marbles to his wife now. So how many white marbles must be choose and give to his wife so as to ensure that there is atleast one pair of red, yellow and green marbles ? 2 Two circles , one circle is inscribed and another circle is outscribed over a square. What is the ratio of area of inner to outer circle. CMC 5 Take this question as challange --> "Candle 'A' takes just four hours to burn it completely and candle 'B' takes 2 hrs. The girth of candle 'A' is just double of candle 'B' with the same height. If Ram lit both the candles in the same time and after how long time the length of Candle 'B' would be just half of candle 'A'? State-Bank-Of-India-SBI 10 DEAR ASPIRANTS.. DONT APPLY FOR BANK JOBS WILDLY WITHOUT KNOWING WHY HOW.. BCOZ SBI.. DO U KNOW, HOW MANY OF UR FRIENDS SELECTED? ITS A BIG FRAUD.. THIS IS SHIT. THERS A BACKDOOR SYSTEM TO GET JOB IN SBI. U CANT GET SELECTED EVEN U HAVE TALENT, OR MERIT. PEOPLE EVEN CANT DO SIMPLE REASONING QUESTIONS, ARE NOW SELECTED FOR CLERK JOB. THEY TOLD PERSONALLY THAT BCOZ OF INFLUENCE I GOT THAT. SBI COLLECTING FUNDS UNDER THIS BLOODY RECRUITMENT. DO U KNOW? FOR 1 PERSON 250/-. IN THAT MANNER NEARLY SBI COLLECTED FUNDS FROM 8 LAKH PEOPLE. IF U IGNORE SC ST CANDIDATES, NEARLY FROM 6.5 LAKH PEOPLE IT COLLECTED. THAT MEANS 650000*250=162500000. ITS NOT DOING AT A TIME. U PEOPLE DONT FELL IN THIS TRAP. U WONT GET JOB, BUT UR POCKET MAY GET HOLE IF U MESS WITH SBI.. BEWARE PEOPLE.. 2 alok and bhanu play the following min-max game. given the expression N=40+X+Y-Z,where X,Y,Z are variables representing single digits (0 to 9),Alok would like to maximize N while Bhanu would like to minimize it.Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X,Y or Z).Alok then chooses the next value and Bhanu, the variable to substitute the value.Finally Alok proposes the value for the remaining variable.Assuming both play to their optimal strategies,the value of N at the end of the game would be: a)49 b)51 c)31 d)58 TCS 3 Past question on Chevron's interview tests Chevron 1 which one is different in below numbers? 352,792,462,583,475 APPSC 10 In a race from pt. X to pt Y and back, Jack averages 0 miles/hr to pt Y and 10 miles/hr back to pr X. Sandy averages 20 miles/hr in both directions. If Jack and Sandy start race at same tIme, who’ll finish 1st Jack/Sandy/they tie/Impossible to tell 1 The sum of 5 consecutive integers is 35. how many of the five consecutive integers are prime number eClerx 2 For more General Aptitude Interview Questions Click Here