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 a pound more it would have cost three times as much as the bowl. If the bowl had been fifty pennies less it would have been a quarter the price of the goldfish.” What had been the total cost?

Goldfish £3, bowl £1.50, total £4.50

Goldfish £2, bowl £1, total £3

Goldfish £1.80, bowl £2.20, total £4