Correct option is B
Logic: Check Prime Numbers.
Option A: 131 → Prime
Option B: 123 → Not a prime (divisible by 3)
Option C: 83 → Prime
Option D: 79 → Prime
So, 123 is not a prime number (it is divisible by 3).
Thus, the correct option is: (b).
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Question
Given below are four numbers, of which three are alike in some manner and one is different. Choose the odd one.
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EnglishSimilar Questions
- 1)
Four triads of numbers have been given out of which three are alike in some manner and one is different. Select the one that is different.
- 2)
Three of the following four options are alike in a certain way and thus form a group. Which is the option that does NOT belong to that group?
- 3)
Which roll number is a perfect cube?
- 4)
Three of the following number-pairs are alike in some manner and hence form a group.
Which number-pair does not belong to that group?
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding/subtracting/ multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) - 5)
Three of the following four are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group?
NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding/deleting/ multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)
(A) 56-7
(B) 169-13
(C) 729-27
(D) 121-11 - 6)
Four number-pairs are given, three follow a pattern. Choose the odd pair.
- 7)Identify the odd number:
- 8)Find the odd one out:
- 9)Identify the odd pair:
- 10)In the following question, select the odd group of numbers from the given alternatives.
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Similar Questions
- 1)
Four triads of numbers have been given out of which three are alike in some manner and one is different. Select the one that is different.
- 2)
Three of the following four options are alike in a certain way and thus form a group. Which is the option that does NOT belong to that group?
- 3)
Which roll number is a perfect cube?
- 4)
Three of the following number-pairs are alike in some manner and hence form a group.
Which number-pair does not belong to that group?
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding/subtracting/ multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) - 5)
Three of the following four are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group?
NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding/deleting/ multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)
(A) 56-7
(B) 169-13
(C) 729-27
(D) 121-11 - 6)
Four number-pairs are given, three follow a pattern. Choose the odd pair.
- 7)Identify the odd number:
- 8)Find the odd one out:
- 9)Identify the odd pair:
- 10)In the following question, select the odd group of numbers from the given alternatives.
