Find the missing number: 10, 20, 35, 55, ___?
- 80
- 90
- 70
- None of these
Explanation
Pattern is +10, +15, +20, +25
10 + 10 = 20
20 + 15 = 35
35 + 20 = 55
55 + 25 = 80
Last verified on 11-10-2026
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