Directions : In each of the following questions, five numbers are given. Out of these, four are alike in a certain way but the rest one is different. Choose the one which is different from the rest four.
Find out the odd number?
Options:
A . 13
B . 17
C . 23
D . 37
E . 73
Answer: Option C Answer: (c) Each of the given numbers is a prime number. But the number obtained on reversing the digits of each of the numbers except 23, is also a prime number.
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