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RRB NTPC CBT I 29 Dec 2020 Shift 1 Paper

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Question : 50

Total: 100

The mean of 150 items was found to be 45. If at the time of calculation, two items were wrongly taken as 83 and 76 instead of 38 and 46, then the correct mean is:

44.5
44
43.5
43

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