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
Answer Posted / ramm
to make a non cycle handshake the should not be a handshake
between (ak,a1).
total number of non cyclic handshakes is N=n-1
thereore answer is 19
| Is This Answer Correct ? | 59 Yes | 7 No |
Post New Answer View All Answers
Integral B(Transpose)*sigma(here sigma means stress)*dV REPRESENTS?
Find the next letter in the series B,F,J,P ---
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.?
two persons run a race of 100m. the winner won by (110/11)m and one second in time. find the speed of lsoer in met
During a given week an author spends 1/4 of his time preparing first drafts, 3/8 of his time editing the drafts and the rest of the time in preparing final drafts. If he works 48 hours during the week, how many hours did he spend in preparing final drafts?
What are the areas shell do ask questions during their technical selection test? send it to my email: kingsbogon@yahoo.com ,Thank you in advance
A man is running around a rectangle it takes time 2 time in travelling length than travelling width total perimeter = 300. Find area.
inept : clever :: languid :
f(X)= 2X-1 + f(X-1) if X is not equal to zeroandiff(X=0)=0, If f(X)= f(X-1)+f(X-2) for X>1 then X= ?
A boy has Rs 2. He wins or loses Re 1 at a time If he wins he gets Re 1 and if he loses the game he loses Re 1. He can loose only 5 times. He is out of the game if he earns Rs 5. Find the number of ways in which this is possible?
There were 36 chairs. how many ways can they be placed such that all rows have equal no. of chairs and atleast three chairs are there in each row and there are atleast three rows.
If substitution is as it's burnout. Didn't remember. But this is one.
In a class the average age is 16yrs.if the teacher who is 40 yrs of age is also included ,the average becomes 17yrs,how many students were there?
I HAVE APPEARED FOR ALLAHABAD BANK ON 21-02-10, I WANT TO KNOW THE SECTIONAL CUT OFF'S FOR CATEGORY.
In 80 coins one coin is counterfeit what is minimum number of weighings to find out counterfeit coin