Aptitude - Odd Man Out and Series - Discussion
Discussion Forum : Odd Man Out and Series - Missing No. (Q.No. 8)
Directions to Solve
Insert the missing number.
8.
2, 6, 12, 20, 30, 42, 56, (....)
Answer: Option
Explanation:
The pattern is 1 x 2, 2 x 3, 3 x 4, 4 x 5, 5 x 6, 6 x 7, 7 x 8.
So, the next number is 8 x 9 = 72.
Discussion:
12 comments Page 2 of 2.
Sushant said:
6 years ago
The sequence is (1 * 1 + 1),
(2 * 2 + 2) ,
(3 * 3 + 3) ,
(4 * 4 + 4) ,
(5 * 5 + 5) ,
(6 * 6 + 6) ,
(7 * 7 + 7) ,
(8 * 8 + 8) ,
And Now, the answer is 72.
(2 * 2 + 2) ,
(3 * 3 + 3) ,
(4 * 4 + 4) ,
(5 * 5 + 5) ,
(6 * 6 + 6) ,
(7 * 7 + 7) ,
(8 * 8 + 8) ,
And Now, the answer is 72.
(1)
Anirudh Rohith said:
6 years ago
2, 6, 12, 20, 30, 42, 56, (....)
6-2 = 4
12-6 = 6
20-12 = 8
30-20 = 10
42-30 = 12
56-42 = 14
72-56 = 16
We can get the answer in this way also.
6-2 = 4
12-6 = 6
20-12 = 8
30-20 = 10
42-30 = 12
56-42 = 14
72-56 = 16
We can get the answer in this way also.
(3)
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