1. The problem statement, all variables and given/known data One hundred tombola tickets were sold, numbered 1-100, at 25p each. Each ticket which included a '5' won a prize costing 50p. Each ticket ending with a '0' won a prize costing £1. If all 100 tickets were sold, how much profit was made? 2. Relevant equations 100 tickets costing 25p that's 100 x 25p = £25 profit But we know there are: 20 tickets with '5's win 50p, so that's 20 x 50p = £10 loss and 10 tickets with '0's win £1, so 10 x £1 = £10 loss 3. The attempt at a solution That's a profit of £25 - (2x£10) = £5 Am I correct please?