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 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 |
Post New Answer View All Answers
In a box there are four different coloured bells,of some quantity (4 each ) what is the minimum number of pick ups so that, atleast 2 of them of the same colour.
Find the next series: AD DP PL LV ?
If a car starts from A towards B with some velocity due to some problem in the engine after travelling 30km.If the car goes with 4/5 th of its actual velocity the car reaches B 45min later to the actual time. If the car engine fails after travelling 45km, the car reaches the destination B 36min late to the actual time , what is the initial velocity of car and what is the distance between A and B in km
4 cows are there at the four corners of a square. if the radius of the rope is 1 and lenth of one side of the square is 14, find the area along the square which the cow cannot gaze.
Hello sir, I am Ravindra singh from delhi & I m 25 year old, I have 5 years work experience in sales coordination and my education qualification is B Com, I want to know what should I do after B Com MBA in sales and marketing or supply chain management Or PGDCA , Please suggest me, Thanks Regards Ravindra singh
If A=Z, B=Y, C=X, .......... Z=A, Then POCKET = ?
If a train covers 600m in 0.5 seconds, how long it will cover in 10 seconds?
write a five digit number , which will be having two prime numbers, and some two more conditions,like 1st digit greater than 2nd etc its easy(remember one is not a prime number,most people don mistake taking 1 as prime number)
Find out the Simple Interest paid for a sum of $4000 at the rate of 8% per annum for 3 months.
A piece of cloth costs Rs 35. If the piece were 4m longer and each meter costs Re 1.00 less, the cost would remain unchanged. How long is the piece?
When Raja was born, his father was 32 years older than his brother and his mother was 25 years older than his sister. If Raja’s brother is 6 years older than Raja and his mother is 3 years younger than his father, how old was Raja’s sister when Raja was born?
Fifty minutes ago if it was four times as many minutes past three o'clock, how many minutes is it to six o'clock?
p and q are positive integers with their average 5, find how many different values can p take
three clocks where set to true time .First run with the exact time ..second slows one minute/day. third gains one minute/day. after how many days they will show true time.
4 couples have a party.Depending on the set of statements,find who insulted whom and who is the host of the party.