AP Police Constable previous year question

In a class of 20 boys, a boy ate 25 chocolates. If the average number of chocolates eaten by the others is one less than the average number of chocolates eaten by all, then the average number of chocolates eaten by all is:

Asked in AP Police Constable Prelims: 2016 (06 Nov 2016) · Quantitative Aptitude

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Correct answer: (B) 6

Given: Number of boys = 20 1 boy ate 25 chocolates Formula: Average = Total chocolates/Number of boys Calculation: Let the average number of chocolates eaten by each boy be ‘x’ According to the question, 19 × (x – 1) + 25 = 20 × x ⇒ x = 25 – 19= 6 ∴ Average number of chocolates eaten by all = 6

हिंदी में प्रश्न

20 మంది అబ్బాయిల తరగతిలో, ఒక అబ్బాయి 25 చాక్లెట్లు తిన్నాడు. మిగిలిన వారు తిన్న చాక్లెట్ల సగటు సంఖ్య, అందరూ తిన్న చాక్లెట్ల సగటు సంఖ్య కంటే ఒకటి తక్కువ అయితే, అందరూ తిన్న చాక్లెట్ల సగటు సంఖ్య:

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सही उत्तर: (B) 6

दिया गया है: लड़कों की संख्या = 20 1 लड़के ने 25 चॉकलेट खाईं सूत्र: औसत = कुल चॉकलेट / लड़कों की संख्या गणना: मान लीजिए प्रत्येक लड़के द्वारा खाई गई चॉकलेट का औसत 'x' है प्रश्नानुसार, 19 × (x – 1) + 25 = 20 × x ⇒ x = 25 – 19 = 6 ∴ सभी द्वारा खाई गई चॉकलेट का औसत = 6

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In a class of 20 boys, a boy ate 25 chocolates. If the average number of chocolates eaten by the others is one less than the average number of chocolates eaten by all, then the average number of chocolates eaten by all is:

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