Entry fee in an exhibition is $1. Later this was reduced by 25% which increased the sale by 20%. The percentage increase in the number of visitors is?	Choose the correct choice from the following answers:  A) 20%  B) 40%  C) 50%  D) 60%  E) 100%
Let the total original sale be $100   Then original number of visitors = 100   New number of visitors = 120/0.75= 
<gadget id="calculator">120/0.75</gadget>
<output>160</output>
160   Increase %= 60%   Answer is 60%
<result>D</result>
Entry fee in an exhibition is $1. Later this was reduced by 25% which increased the sale by 20%. The percentage increase in the number of visitors is?