The average of 7 numbers is 29. The average of first three of them is 23 and…
Coal India · General Paper · 2017
The average of 7 numbers is 29. The average of first three of them is 23 and the last three of them is 42. Then the fourth number is:
- A.
8
- B.
9
- C.
10
- D.
12
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Correct answer: A
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