Question

The double of the product of the first and the second number is 130 and the product of the second and the third number is 221. Find the numbers​

Answer 1

Answer:

Consider that 221=225−4. Both 225 and 4 are perfect squares. So:

225−4=221

⟹152−22=221

⟹(15−2)(15+2)=221

⟹13×17=221

So their sum would be 13+17=30.

Step-by-step explanation:

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