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
6 Face of a cube are painted in a manner ,no 2 adjacent face have same colour three colurs used are red blue green. Cube is cut in to 36 smaller cube in such a manner that 32 cubes are of one size and rest of them bigger size and each bigger side have no red side.
One watch is showing 30 past 3 .What is the angle between minutes & hours hand?
In a class photograph, 5 girls are sitting in the front where as 20 boys are standing behind them. The corner two positions are reserved for the tallest boys of the class. What are the number of ways the students may be arranged?
the word unimpressive was given.they asked us to do change 1st & 2nd,3rd & 4th,so on.then they asked what will be 10th letter from right?
Aeroplane is flying at a particular angle and latitude,after some time another latitude is given..(8 hrs later), You are asked to find the local time of the place.
if on a salary of rs."S" per month,one has to pay one tax of x rs. And a second type of tax of y rs then % of salary taken home is?
If the simple interest is 10.5 % annual and compound interest is 10 % annual, compounded annually, find the difference between the interests after 3 years on a sum of Rs. 1,000.
A chain is broken into three pieces of equal lengths containing 3 links each. It is taken to a blacksmith to join into a single continuous one. How many links are to to be opened to make it ?
15 software functions are there. It is known that atleast 5 of the m are defective. What is the probability that if three functions are chosen and tested, no errors are uncovered.
If A=Z, B=Y, C=X, .......... Z=A, Then ZERD = ?
Alphametics are puzzles where each letter stands for a different digit. Here are two alphametics. No word can begin with a zero. We’ve started you out with some of the letters. BASE + BALL -------------- GAMES what these alphabets represent
If two pencils cost 8 cents, then how much do 5 pencils cost?
Asian paints takes a contracts to paint 3 houses. Mr. White can paint a house in 6 days while Mr.Blue would take 8 days and Mr.Red 12 days. After 8 days Mr.White goes on a holiday and Mr. Blue begins to work for a period of 6 days. How many days will it take Mr.Red to complete the work?
how to create the alarm using sql queries.In the sense i need to make the computer to produce beep sound for each 1 minute.(hint: by chr(7) we can produce the beep sound)
Why do we buy you?