A student chose a number, multiplied it by 2, then subtracted 200 from the result and got 110. What was the number he chose?
Select the correct option
A) 168	B) 100	C) 155	D) 160	E) 200

Rationale: "solution : let x be the number he chose , then 2 * x * 200 = 110 2 x = 310 x = 155 correct answer c"
Answer: C