Others Maths Puzzle

There are 116 points in a plane. Two points are taken at a time and are connected to make straight line. If K is the number of mid points of these straight lines then find the minimum value of K.
(a) 116C2 - 116 (b) 22C2
(c) 58C2 (d) None of these

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Others Other Question

4/5 of the voters in Barreily promised to vote for Sonia and the rest to vote for Sushma
Of the voters , 10% of the voters who had promised to vote for Sonia, did not vote on the election day, while 20% of the voters who had promised to vote for Sushma did not vote on the election day. What is the total no. of votes polled if Sonia got 216 votes?
a) 200
b) 300
c) 264
d) 100 If N = 0. ab and a and b are not necessarily distinct, how many values can the denominator take in N? 5/6/3/2