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The mean high temperature of the first four days of a week is 25°C whereas the mean of the last four days is 25.5°C. If the mean of the whole week is 25.2°C, then the temperature of the 4th day is-
- A. 25.2°C
- B. 25.5°C
- C. 25.6°C
- D. 25°C
Answer: Option C
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