The mean temperature of Monday to Wednesday was \( 37 ^{\circ} C \) and of Tuesday to Thursday was \( 34 ^{\circ} C \). If the temperature on Thursday was 4/5 that of Monday, the temperature of Thursday was


A) \( 35.5 ^{\circ} C \)

B) \( 34 ^{\circ} C \)

C) \( 36.5 ^{\circ} C \)

D) \( 36 ^{\circ} C \)

Correct Answer:
D) \( 36 ^{\circ} C \)

Description for Correct answer:
Temperature of (Mon + Tue + Wed)

= \( \Large 37 \times 3 = 111 ^{\circ} C \).

Temperature of (Tue + Wed + Thu)

= \( \Large 34 \times 3 = 102 ^{\circ} C \)

Temperature of (Mon - Thu) = \( \Large 111 ^{\circ} C - 102 ^{\circ} C = 9 ^{\circ} C \)

Temperature of [Mon \( \Large \frac{4}{5} \) (Mon)] = 9

Temperature of Monday = \( \Large 9 \times 5 = 45 ^{\circ} C \)

Temperature of Thursday

= \( \Large 45 \times \frac{4}{5} = 36 ^{\circ} C \).

Part of solved Average questions and answers : >> Aptitude >> Average








Comments

i undurstood everything but why the 9 is multiplied by 5?
- Disha,Dashaputre





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