CAT 2021 is being conducted in November 2021 this year.
Logical Reasoning (LR) will be a crucial test for your logical conclusions.
Practice with following Question and answer with solutions:
There are exactly three distinct pairs of siblings and four other children in a group comprising ten children – Sam, Joe, Tim, Ron, Ken, May, Bob, Ian, Den and Emy. No two children in the group, apart from the three pairs of siblings, are related to each other. Mr. Max selects one pair from the three pairs of siblings and two children from the four other children in the group to make a team of four children. He repeats the exercise several times. Some of the teams selected by him are shown in the table given below.
|
Teams |
I |
Sam |
Tim |
Den |
May |
|
II |
Ken |
Ron |
Joe |
Bob |
|
|
III |
Tim |
Ian |
Bob |
Emy |
|
|
IV |
May |
Bob |
Den |
Sam |
Which among the following is definitely a pair of siblings?
(a) Den and Sam (b) Ian and Emy (c) Tim and Bob (d) None of these
Solution b
Since Tim is the only child common between teams I and III, we can say that Tim definitely does not have a sibling in the group.
Similarly, looking at teams II and IV, we can say that Bob also does not have a sibling in the group.
Now, looking at team III, we can say that Ian and Emy definitely make a pair of siblings.
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