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Question 55Asked in RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)

The average marks of some students in a class is 75. When five students are included, the average becomes 78 and the marks of those five students are 80,…

The average marks of some students in a class is 75. When five students are included, the average becomes 78 and the marks of those five students are 80, 85, 89, 81 and 82. Find the total number of students.
  1. A6
  2. B9
  3. C8
  4. D10
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Correct answer: (B) 9

From RRB JE CBT-1 PYQ 18 Dec 2024, Shift 1 (9:00 AM)

This is question 55 of RRB JE CBT-1 PYQ 18 Dec 2024, Shift 1 (9:00 AM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.