Question 42

Find the odd one out
1,5,14,30,50,55,91

Solution

the sequence is as follows:

$$1,1+2^{2}=5,5+3^{2}=14,14+4^{2}=30,30+5^{2}=55,55+6^{2}=91$$ and so on

here 50 does not fit the sequence.Therefore, 50 is the odd one out.

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