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1. The average temperature for the first 4-days of a week is 40,2º C and that of the last 4-days is 41.3°C. If the average temperature for the whole week is 40.6° C, then temperature on the fourth day is -

  • A. 38.5 ° C
  • B. 38.5 ° C
  • C. 38.5 ° C
  • D. 38.5 ° C

Answer: Option B

Explanation:

Temperature on the fourth day
= [(40.2 × 4 + 41.3 × 4) - (40.6 × 7)]° C
= 41.8° C

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