The average of 11 observations is 72. If average of first 6 observations is 70…
TCS · 2024
The average of 11 observations is 72. If average of first 6 observations is 70 and that of last 6 observations is 71, then the 6th observation is:
- A.
51
- B.
54
- C.
55
- D.
56
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