Reasoning - Classification
Directions to solve :
In each of the following questions, four numbers are given, out of which three are alike in some manner and one is different. Choose the one which is different from the rest three.
16.
Answer
Only 119 has different factors, 7 and 17, and no factor is repeated.
Answer :
Option AExplanation :
Only 119 has different factors, 7 and 17, and no factor is repeated.
17.
Answer
81 is the only square number in the group.
Answer :
Option CExplanation :
81 is the only square number in the group.
18.
Answer
37 is the only prime number in the group.
Answer :
Option AExplanation :
37 is the only prime number in the group.
19.
Answer
In all other numbers, the sum of the digits is 17.
Answer :
Option BExplanation :
In all other numbers, the sum of the digits is 17.
20.
Answer
83 is the only prime number in the group.
Answer :
Option DExplanation :
83 is the only prime number in the group.
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