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Number Series and Logical Patterns
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A group of students decided to collect as many paise from each member of group as is the number of members. If the total collection amounts to Rs. 59.29, the number of the member is the group is:
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A
77
💡 Explanation:
If there are n members and each contributes n paise, total collection = n × n paise = n² paise. Rs. 59.29 = 5929 paise. So n² = 5929, which means n = √5929. Computing: 70² = 4900, 80² = 6400, 77² = (80-3)² = 6400 - 480 + 9 = 5929. Therefore, n = 77 members.