20 people meet and shake hands. The maximum number of hand
shakes possible if there is to be no ‘cycle’ of handshakes
is( a cycle of handshake is a sequence of people a1,a2,
…..ak)such that people(a1,a2),(a2,a3)…..(a(k-1),ak),(a2,a1)
shake hand is
- 3 Answers
- 24426 Views
- TCS, I also Faced
- E-Mail Answers
Answer Posted / linga
using this formula we can find the the maximum no of hand
shakes i.e n(n+1)/2
=19(20)/2
=190 times
| Is This Answer Correct ? | 21 Yes | 100 No |
Post New Answer View All Answers
Complete the series..2 2 12 12 30 30 ?
Rohan bought some rice at Rs. 10 per kilogram. He buys 2 kg rice from a ration store at the rate of Rs. 8 per kilogram. He mixes the two type of rice and sells at Rs. 11 per kilogram. He makes 25% profit. What is the ratio of non-ration to ration rice?
epaulette : shoulder :: tiara :
a train covers the distance D between two cities in hours arriving 2 hours late.what rate would permit to train to arrive on schedule?
A person has Rs 100/- in his pocket, he can as 25 pencils or 15 books. He kept 15% of the money for travelling expenses and purchased 5 pencils. So how many books he can purchase with the remaining money.
Subbu starts from a point O at 10.00 am , overtakes Ajay, who is moving in the same direction, at 11.00 a.m. and Bhuvan moving in the opposite direction at 12.00 (noon). If the speed of Bhuvan is one fourth the speed of Subbu, at what time will Ajay and Bhuvan cross each other.
There is a certain four digit number whose fourth digit is twise the first digit. Third digit is three more than second digit. Sum of the first and fourth digits twise the third number. What was that number ?
plz send test pattern of nsn engineers graduate.
A sequence is given. You should find out error & write correct 1 2 5 10 13 26 29 48.
A sales person multiplied a number and get the answer is 3, instead of that number divided by 3. what is the answer he actually has to get ? (1/3). 7. A ship started from port and moving with I mph and another ship started from L and moving with H mph. At which place these two ships meet ?
The cost of one pencil, two pens and four erasers is Rs.22 while the cost of five pencils, four pens and two erasers is Rs.32.How much will three pencils, three pens and three erasers cost?
how 1000000000 can be written as a product of two factors neither of them containing zeros
solution of system of equations y-z=0,x+8y=4,3x+4y=7z is
Grass in lawn grows equally thick and in a uniform rate. It takes 24 days for 70 cows and 60 for 30 cows . How many cows can eat away the same in 96 days.?
Business Analytics What's the difference between logistic and linear regression? How do you avoid local minima?
