Answer:
Explanation:
The cost of one ticket will be £8.20
Explanation
Suppose, the cost of one ticket is
As the offer says "buy 3 tickets and get a ticket free" , it means they actually need to pay for 3 tickets.
So, the total cost of 3 tickets
Each of four friends pay £6.15 , so the total amount they pay
=£6.15*4=£24.60
Thus, the equation will be .....
=3x=24.60
=x=24.60/3=8.20
So, the cost of one ticket will be £8.20