Multiple choice general knowledge math & puzzles

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:

  1. 56

  2. 77

  3. 63

  4. 52
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

AI explanation

If there are n members, each contributes n paise, so the total collection is n^2 paise. Rs. 59.29 equals 5929 paise, and the square root of 5929 is exactly 77, so the group has 77 members.

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