The average temperature for the first 4 days of a week is 40.2º C and that of the last 4-days is 41.3º C. If the average temperature for the whole week is 40.6ºC then the temperature on the fourth day is-
Solution
Correct Answer: Option D
চতুর্থ দিনের তাপমাত্রা-
= {(4 × 40.2°) + (4 × 41.3°)} - (7 × 40.6°)
= (160.8° + 165.2°) - 284.2°
= 326° - 284.2°
= 41.8°C
= {(4 × 40.2°) + (4 × 41.3°)} - (7 × 40.6°)
= (160.8° + 165.2°) - 284.2°
= 326° - 284.2°
= 41.8°C
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