Find a positive number, which when increased by 8 is equal to 128 times reciprocal of the number.  Answers:	A) 5	B) 6	C) 8	D) 7	E) 9

Rationale: explanation : let the number be x . then , x + 8 = 128 x ( 1 / x ) = > x < sup > 2 < / sup > + 8 x - 128 = 0 = > ( x + 16 ) ( x - 8 ) = 0 = > x = 8 answer : option c
Answer: C