What is the smallest positive integer which multiplied by 40 gives a perfect square?

(A) 2 (B) 5 (C) 20 (D) 40 (E) None of these

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- April 28th 2010, 08:40 AMsri340perfect square
What is the smallest positive integer which multiplied by 40 gives a perfect square?

(A) 2 (B) 5 (C) 20 (D) 40 (E) None of these - April 28th 2010, 08:49 AMsa-ri-ga-ma
- April 28th 2010, 09:57 AMtonio