1, 2, 3, 6, 9, 18, (.....), 54. What is the missing number in the series ?

1, 2, 3, 6, 9, 18, (.....), 54. What is the missing number in the series ?

A 18

B 27

C 36

D 81

Solution

Correct Answer: Option B

প্রথম ধারা : 1 3 9 27

×3 ×3 ×3

দ্বিতীয় ধারা : 2 6 18 54

×3 ×3 ×3