There are 30 people in a group. If all shake hands with one another , – McqOptions

MCQOPTIONS

1.	There are 30 people in a group. If all shake hands with one another , how many handshakes are possible?
A.	870
B.	435
C.	30
D.	29 + 1
Answer» C. 30

Discussion

No Comment Found

Related MCQs

From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. In how many ways can it be done?
Number of circular permutations of different things taken all at a time is n!.
There are 20 points in a plane, how many triangles can be formed by these points if 5 are colinear?
Find the number of rectangles and squares in an 8 by 8 chess board respectively.
Find the sum of all four digit numbers that can be formed by the digits 1, 3, 5, 7, 9 without repetition.
Find the number of ways of arranging the letters of the words DANGER, so that no vowel occupies odd place.
Twelve people from a club, by picking lots. One of them will host a dinner for all once in a month. The number of dinners a particular member has to host in one year is
There are two identical red, two identical black, and two identical white balls.In how many different ways can the balls be placed in the cells (Each cell to contain one ball) shown above such that balls of the same colour do not occupy any two consecutive cells?
In how many different ways can four books A, B, C and D be arranged one above another in a vertical order such that the books A and B are never in continuous position?
In a colony, there are 55 members. Every member posts a greeting card to all the members. How many greeting cards were posted by them?