1.

The sum of a non - zero number and twenty times its reciprocal is 9. What is the number?1). -52). 33). -34). 5

Answer»

LET the number be y

According to the PROBLEM statement

⇒ y + 20/y = 9

⇒ y2 - 9y + 20 = 0

⇒ (y - 5) (y - 4) = 0

the REQUIRED number is 5 which satisfies the above given condition

∴ the value of required fraction is 5


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