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Re: Which one of the following is the minimum value of the sum [#permalink]
1 * 36 = 36, sum: 1 + 36 = 37 eliminate
2 * 18 = 36, sum: 2 + 18 = 20 eliminate
3 * 13 = 36, sum: 3 + 13 = 16 eliminate
4 * 9 = 36, sum: 4 + 9 = 13 eliminate
6 * 6 = 36, sum: 6 + 6 = 12 keep
option E
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Re: Which one of the following is the minimum value of the sum [#permalink]
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For the sum to be least, the numbers have to be close to each other.
6*6 gives us 36 and also the distance between 6 & 6 is ZERO!

6+6 = 12, Pick E
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Re: Which one of the following is the minimum value of the sum [#permalink]
there is another interesting way to deal with this question.

Given a specific area of a rectangle, its perimeter is minimized if all of its sides are equal that is, we have a square.

So given a area of 36, the small perimeter is achieved with a square with side 6.
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