UP Police Constable practice question
A shop's weekly sales record shows 7 daily entries with an average of Rs 12,500. On auditing, it was discovered that there are actually only 6 trading days in that week, and Monday's sales of Rs 9,800 had mistakenly been entered twice. After removing the duplicate entry, find the correct average daily sales for the 6 actual trading days.
From a UP Police Constable Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (B) Rs 12,950
Total of 7 entries = 7 × 12,500 = 87,500. Removing the duplicate Monday entry of Rs 9,800: correct total for 6 days = 87,500 − 9,800 = 77,700. Correct average = 77,700/6 = Rs 12,950.
हिंदी में प्रश्न
एक दुकान के साप्ताहिक बिक्री रिकॉर्ड में 7 दैनिक प्रविष्टियाँ हैं जिनका औसत 12,500 रुपये है। ऑडिट करने पर पता चला कि उस सप्ताह में वास्तव में केवल 6 व्यापारिक दिन थे, और सोमवार की 9,800 रुपये की बिक्री गलती से दो बार दर्ज हो गई थी। डुप्लीकेट प्रविष्टि हटाने के बाद, 6 वास्तविक व्यापारिक दिनों की सही औसत दैनिक बिक्री ज्ञात कीजिए।
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सही उत्तर: (B) 12,950 रुपये
7 प्रविष्टियों का कुल योग = 7 × 12,500 = 87,500। डुप्लीकेट सोमवार की प्रविष्टि 9,800 रुपये हटाने पर: 6 दिनों का सही कुल योग = 87,500 − 9,800 = 77,700। सही औसत = 77,700/6 = 12,950 रुपये।
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