Which number will replace the question mark (?) in the following series? 3, 2, 3, 8, 31, ?
154
The correct answer is 154.
Fibonacci Series: Each term is the sum of the two preceding terms. Series based on specific rules: Patterns involving squares, cubes, prime numbers, etc., or complex rules like the one found in this problem ($(T_{n-1} \times k) \pm c$ or $(T_{n-1} \times n) \pm c$). Solving these problems often requires trial and error, testing different potential patterns based on how the numbers change from one term to the next.
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
First row: 21, 12, 19
Second row: 27, 10, 19
Third row: 24, 10, ?
(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)
Find the missing number from the below options.

Find the missing number from the below options.

Find the missing number from the below options.

In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives
12 | 17 | 121 |
21 | 81 | 144 |
36 | 45 | ? |
In the following question, find the missing number from the given series.
4, 12, 48, 240, 1440, ?