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उत्तर : 4. "72"
2, 6, 12, 20, 30, 42, 56, ?
5प्र:
2, 6, 12, 20, 30, 42, 56, ?
- 161false
- 264false
- 370false
- 472true
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उत्तर : 4. "72"
व्याख्या :
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.