1. "Your cakes," said Bert, tipping out the bag on the table. "They came to 1 pound 80 pence." Jane looked. "They're fine, and you did get more of the iced ones," she commented. "What did you pay for those?" Her husband smiled. "As many pence each as the total number of cakes I bought," he replied. "And I got as many of them as I paid in pence for each of the others." How many of each sort?

15 cakes at 8p, 2 at 6p

10 cakes at 14p, 4 at 10p

12 cakes at 12p, 5 at 8p