Correct Answer - Option 1 : 39°C
Given:
The average temperature for Wednesday, Thursday, and Friday was 40 °C.
The average for Thursday, Friday, and Saturday was 41°C.
The temperature on Saturday was 42°C
Formula used:
Average = Sum of observation/Total number of observation
Calculation:
Sum of temperature for Wednesday, Thursday and Friday was
⇒ 40 × 3 = 120°C
Sum of Thursday, Friday and Saturday was
⇒ 41 × 3 = 123°C
Sum of Thursday and Friday
⇒ 123 - 42 = 81°C
The temperature on Wednesday was
⇒ 120 - 81 = 39°C
∴ The temperature on Wednesday was 39°C.
