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Question

The sum of a number and its reciprocal is 2130. Find the number.

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Solution

Let the one number be 'x'
So, its reciprocal will be 1x
Now, according to the question.
x+1x=2130=6130(x²+1)x=613030x2+30=61x30x261x+30=030x236x25x+30=06x(5x6)5(5x6)=0(6x5)(5x6)=06x=5 or 5x=6x=56 or x=65

So, the numbers are 56 and 65


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