किसी शहर में पहले चार दिन औसत वर्षा 0.40 इंच दर्ज की गई। आखिरी दो दिन 4 : 3 के अनुपात में वर्षा हुई। छः दिनों की औसत वर्षा 0.50 इंच थी। पांचवे दिन कितनी वर्षा हुई?
व्याख्या एवं हल
सही उत्तर (D) 0.90 inch है।
व्याख्या:
Calculate total rain for four days then use averages to establish fifth-day measurements.
In English (Question & Model Answer)
The average rainfall in a city for the first four days was recorded to be 0.40 inch. The rainfall on the last two days was in the ratio of 4 : 3. The average of six days was 0.50 inch. What was the rainfall on the fifth day?
The correct answer is (D) 0.90 inch.
Explanation:
Calculate total rain for four days then use averages to establish fifth-day measurements.