**Slot -1 – Quantitative Aptitude – Arithmetic – Number System – While multiplying three real numbers**

**While multiplying three real numbers, Ashok took one of the numbers as 73 instead of 37. As a result, the product went up by 720. Then the minimum possible value of the sum of squares of the other two numbers is?**

**Answer:** 40

**Solution:** Let the other two numbers are a & b so

73ab – 37ab = 720

Or 36ab = 720

ab = 20

using A.M.≥G.M

(a^2+b^2)/2 ≥(a^2 b^2 )^(1/2)=ab

(a^2+b^2) ≥2ab=40

So minimum required value = 40

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