Choose which pair of numbers come next in the sequence 16, 26, 56, 36, 46, 68, 56, ?
- 64, 82
- 66, 80
- 78, 68
- None of these
Explanation
Sequence is: 16, 26, 56, 36, 46, 68, 56, ?, ?
Pattern:
16 +10 = 26
26 +30 = 56
56 -20 = 36
36 +10 = 46
46 +22 = 68
68 -12 = 56
Logic:
+10 is same every time
The +30, +22, ... decreases by 8
The -20, -12, ... increases by 8
So next:
56 +10 = 66
66 +14 = 80 [because 22-8=14]
Answer is 66, 80
Last verified on 20-10-2026
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