The average temperature of Monday, Tuesday and Wednesday was 37°C. While the average temperature of Tuesday, Wednesday and Thursday was 34°C. If temperature of Monday and Thursday was in the ratio 5 : 4, then find the temperature of Monday.
Answer & explanation
Correct answer: option 3
M + T + W = 37 × 3 = 111 (total) ...........(i)
T + W + Th = 34 × 3 = 102 (total) ...........(ii)
(i) - (ii)
Mon - Th = 9°
*Monday : Thursday =5 : 4 (given)
∴ 5x - 4x = 9°
x = 9°
Temp. of Monday = 5x = 5 × 9° = 45°