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Three groups :: x1,x2,x3
A,b common to all three. Then atleast 1 elemnt common to 2 ie x1,x2,x2,x3,x3,x1.
Findminimum elements in each group.

Read Solution (Total 3)

4 i think by venn diagram
11 years agoHelpfull: Yes(17) No(2)

a,b is common in each 3 , and let c is goes for x1 and x2 , d for x2 and x3, e is for x3 and x1. hence ans : 4
11 years agoHelpfull: Yes(12) No(0)
In x1
11 years agoHelpfull: Yes(0) No(1)

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