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QA – Placement Quizzes | Progressions | Question 9

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For n positive integers, if their product is nn, then what will be their sum?


Equal to n+(1/n)


Equal to n


A negative integer


Never less than n2

Answer: (D)


Clearly, since the given integers are positive, their sum can\’t be negative. 
Also, since the numbers are all integers their sum can\’t be a fraction. 
Let\’s take 1, 3 and 9. The product of these three integers is 27 = 33
This can also be written as nn where n=3. 
As we can see, the sum of these 3 integers is not equal to 3. 
Therefore, we are left with the fourth option.

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Last Updated : 16 Sep, 2021
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