The average temperature of Monday, Tuesday, Wednesday, and Thursday was 38° C and that of Tuesday, Wednesday, Thursday and Friday was 40° C, if the temperature on Monday was 30° C, the temperature of Friday was?
Correct Answer: 38°
Explanation:
From question
M + T + W + TH = 4 x 38° = 152°
⇒ T + W + TH =152° – 30° = 122° Again from question
⇒ T + W + TH + F = 4 x 40° = 160°
⇒ F = 160° – 122°
= 38°
