1. "What did you pay for the oranges?" asked Beryl. "I saw Dellers had them like these at only 3 for 19 pence." Andy smiled. "That's what I got, and also those others at 4 for 31 pence," he told her. "Just one pound fifty pence the lot." How many at each price?

9 oranges at 3 for 19p, 12 at 4 for 31p

6 oranges at 3 for 19p, 16 at 4 for 31p

12 oranges at 3 for 19p, 8 at 4 for 31p