Q.

Find the odd value among 23,35,57,711,1113,1316.


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a

     23

b

     35

c

     57

d

     1316 

answer is D.

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Detailed Solution

It can be observed that each number is formed as a combination of consecutive prime numbers. 2 and 3 are consecutive prime numbers, 3 and 5 are consecutive prime numbers and so on. Hence the last value should be 13 and 17, but we have 1316.
Hence 1316 is the odd value.
 
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