RRB NTPC CBT 2 Level 6 Exam 9 May 2022 Shift 1
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Question : 55 of 120
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The average of 30 numbers is 55. The average of the first 15 numbers is 51 and the average of the last 12 numbers is 56. What is the average of 68, 74 and the remaining 3 numbers?
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