An inspector rejects 10% of the meters as defective. How many will he examine to reject 20?  Pick one
A) 100	B) 120	C) 250	D) 200	E) 160

Rationale: "then , 10 % of x = 20 ( 10 / 100 ) x = 20 x = ( 20 * 100 * ) / 10 = 200 answer is d"
Answer: D