Question 17

In the following question, select the missing number from the given series.
1, 1, 3, 4, 5, 9, 7, 16, 9, 25, 11, ?

Solution

Series : 1, 1, 3, 4, 5, 9, 7, 16, 9, 25, 11, ?

It is a combination of 2 series at alternate positions.

Numbers at odd position are consecutive odd numbers, while numbers at even position are squares of consecutive natural numbers.

1st series : 1, 3, 5, 7, 9, 11

2nd series : 1, 4, 9, 16, 25, 36

=> Ans - (B)

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In the following question, select the missing number from the given series.1, 1, 3, 4, 5, 9, 7, 16, 9, 25, 11, ?