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8. 49 members attended the party. In that 22 are males, 17 are females. The shake hands between males, females, male and female. Total 12 people given shake hands. How many such kinds of such shake hands are possible?
a) 122 b) 66 c) 48 d)1 28

Read Solution (Total 3)

12C2=66
13 years agoHelpfull: Yes(14) No(4)

ans is 66
only 12 peoples are involving here..
so 12C2=12*11/2=66
13 years agoHelpfull: Yes(7) No(2)
only 12 peoples are involving here..
so 12C2=66
13 years agoHelpfull: Yes(3) No(2)

TCS Other Question

A lady has fine gloves and hats in her closet- 26 blue, 30 red, and 56 yellow. The lights are out and it is totally dark. In spite of the darkness, she can make out the difference between a hat and a glove. She takes out an item out of the closet only if she is sure that if it is a glove. How many gloves must she take out to make sure she has a pair of each color?
Q3. Given 3 lines in the plane such that the points of intersection form a triangle with sides of length 20, 20 and 30, the number of points equidistant from all the 3 lines is
a)1 b)3 c)4 d)0