Question 51

If the sum of a number and its reciprocal be 2, then the number is

Solution

Let the number be $$x$$

=> $$x+\frac{1}{x}=2$$

=> $$x^2+1=2x$$

=> $$x^2-2x+1=0$$

=> $$(x-1)^2=0$$

=> $$x-1=0$$

=> $$x=1$$

=> Ans - (B)


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