GATE | GATE CS 2018 | Question 1

What is the missing number in the following sequence?
2, 12, 60, 240, 720, 1440, …. 0

(A) 2880
(B) 1440
(C) 720
(D) 0


Answer: (B)

Explanation: The series starts with 2.

We multiply first term with 6 to get second term 12



Then we multiply second term with 5 to get third term 60

Then we multiply third term with 4 to get fourth term 340

Then we multiply fourth term with 3 to get fifth term 720

Then we multiply fifth term with 2 to get fifth term 1440.

Then we need to multiply with 1 and we get 1440 again.


Quiz of this Question



My Personal Notes arrow_drop_up


Article Tags :

Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.