A certain telescope increases the visual range at a particular location from 80 kilometers to 150 kilometers. By what percent is the visual range increased by using the telescope ?
Choose the correct option:
A) 30%
B) 33 1/2%
C) 40%
D) 60%
E) 87.5%
Original visual range = 80 km   New visual range = 150 km   Percent increase in the visual range by using the telescope   = (150-80)/80 * 100%   = 7/8 * 100= 
<gadget id="calculator">7/8 * 100</gadget>
<output>175/2 = around 87.5</output>
87.5 %   Answer 87.5%
<result>E</result>
A certain telescope increases the visual range at a particular location from 80 kilometers to 150 kilometers. By what percent is the visual range increased by using the telescope ?