A group of 10 items has arithmetic mean 6. If the arithmetic mean of 4 of these items is 7.5, then the mean of the remai

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Q 3022845731.     A group of 10 items has arithmetic mean 6. If the arithmetic mean of 4 of these items is 7.5, then the mean of the remaining items is
A

`6.5`

B

`5.5`

C

`4.5`

D

`5.0`

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Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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