Question

All ticket for a concert are the same price.

Amy and dan pay £63 altogether for some tickets.
Amy pays 24.50 for 7 tickets.

How many tickets does Dan buy?

Answer 1

we know that
if Amy pays 24.50 for 7 tickets
so
cost each ticket is=24.50/7-----> £3.50

find the total number of tickets=£63/£3.50-----> 18 ticket
let
x-----> amount of tickets purchased by Dan
18=7+x -----> x=18-7-----> x=11

the answer is
11