Three friends are planning to attend a concert. If another friend also goes with them, they will get a group discount on their tickets. If the new total price of the tickets with the group discount is the same as the original total price of the tickets without the group discount, how much is the discount?
Select the correct option.
A) 5%	B) 10%	C) 20%	D) 25%	E) 33%
Let x be the original price of one ticket.   The total original cost is 3x.   The new cost is 4y, where y is the discounted price of one ticket.   3x = 4y   y = 3x/4 =0.75x which is a discount of 25%.   The answer is 25%.3 /4= 
<gadget id="calculator">3 /4</gadget>
<output>3/4 = around 0.75</output>
0.75x which is a discount of 25%.   The answer is 25%.
<result>D</result>
Three friends are planning to attend a concert. If another friend also goes with them, they will get a group discount on their tickets. If the new total price of the tickets with the group discount is the same as the original total price of the tickets without the group discount, how much is the discount?