The average of 20 numbers is zero. Of the… | Answer

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Quantitative Aptitude

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Average

The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?
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Explanation

ধরি, সংখ্যাগুলি হল a 1 , a 2 , ..., a 20 দেওয়া আছে, সংখ্যাগুলোর গড় শূন্য তাহলে, (a 1 + a 2 +...+ a 20 )/20 = 0 ⇒ a 1 + a 2 +...+ a 20 = 0 ⇒ a 1 + a 2 +...+ a 19 = - a 20 ∴ সর্বোচ্চ 19 টি সংখ্যার মান শুন্য থেকে বড় হতে পারে।

If the average of 5 positive integers is 40 and the difference between the largest and the smallest of these 5 numbers is 10, what is the maximum value possible for the largest of these 5 integers?

The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?Reading

The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?

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The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?
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