A certain telescope increases the visual range at a particular location from 70 kilometers to 150 kilometers. By what percent is the visual range increased by using the telescope ?	Choose the correct choice from the following answers.
A) 30%  B) 33 1/2%  C) 40%  D) 60%  E) 114.28%
Original visual range = 70 km   New visual range = 150 km   Percent increase in the visual range by using the telescope   = (150-70)/70 * 100%   = 8/7 * 100%   = 114.28 %   Answer 114.28%
<result>E</result>
A certain telescope increases the visual range at a particular location from 70 kilometers to 150 kilometers. By what percent is the visual range increased by using the telescope ?