Join ExamsbookAnswer : 4. "91"
Find the wrong number in the series.
1, 2, 6, 15, 31, 56, 915
Q: Find the wrong number in the series. 1, 2, 6, 15, 31, 56, 91
- 131false
- 215false
- 356false
- 491true
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Answer : 4. "91"
Explanation :
Answer: D) 91 Explanation: The difference of the two consecutive numbers are 1, 4, 9, 16, 25, 35. This is clearly , +12, +22, +32, +42, +52,+62 Here 35 is wrong, So our wrong number is 91
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Since Nithya and Suganya exchange places, so Rita’s new position is the same as Monika’s earlier position. This position is 17th from the right and 10th from the left. Therefore Number of girls in the row = (16 + 1 + 9) = 26.