Question

What should come in place of the question mark (?) in the given series? 2, 3, 6, 11, 18, ?

• A. 26
• B. 28
• C. 25
• D. 27

Answer 1

Answer:

D. 27

Look at the pattern in the series:

2, 3, 6, 11, 18, ?

Find the differences:

• 3 − 2 = 1

• 6 − 3 = 3

• 11 − 6 = 5

• 18 − 11 = 7

So the differences are: 1, 3, 5, 7 (odd numbers)

Next difference should be 9

18 + 9 = 27

Final Answer: 27