14. A natural number, when increased by 12, becomes equal to 160 times – InterviewSolution

1.

14. A natural number, when increased by 12, becomes equal to 160 times its reciprocal. Find the number.

Answer»

Suppose that number is xnowx+12= 160/xx^2+12x-160= 0

x^2+(20-8)x-160= 0

x^2+20x-8x-160= 0

x(x+20)-8(x+20)= 0

x= 8 x= -20x= 8 Answer

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