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The mean of 7 numbers is 10. If the mean...

The mean of 7 numbers is 10. If the mean of first 4 numbers is 8 and that of last 4 numbers is 16, then the fourth number is:

A

20

B

26

C

30

D

36

Text Solution

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The correct Answer is:
B
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MTG IIT JEE FOUNDATION-STATISTICS-Olympiad/HOTS Corner
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