1.The boy undid the wrapping on the present. "A goldfish, Dad," he exclaimed. "It must have cost a lot." Dad smiled. "Not too much. If the fish had been £10 more it would have cost three times as much as the bowl. If the bowl had been £5 less it would have been a quarter the price of the goldfish." What had been the total cost?

Goldfish £30, bowl £15, total £45

Goldfish £18, bowl £22, total £40

Goldfish £20, bowl £10, total £30