Five 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?  Choose one.
A) 14% B) 17% C) 20% D) 25% E) 33%
Let x be the original price of one ticket.   The total original cost is 5x.   The new cost is 6y, where y is the discounted price of one ticket.   5x = 6y   y = 5x/6 which is about 0.83x which is a discount of about 17%.   The answer is 17%.
<result>B</result>
Five 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?