A certain telescope increases the visual range at a particular location from 90 kilometers to 150 kilometers. By what percent is the visual range increased by using the telescope ?	Select the correct option.
A) 30 %	B) 33 1 / 2 %	C) 40 %	D) 60 %	E) 66 2 / 3 %

Rationale: "original visual range = 90 km new visual range = 150 km percent increase in the visual range by using the telescope = ( 150 - 90 ) / 90 * 100 % = 2 / 3 * 100 % = 66.67 % answer e"
Answer: E