1.Don cracked the top of his egg carefully. "Nice and fresh," he said. "Did they cost a lot?" "72 pence for what I got," replied Betty. "But on the way home I saw some exactly the same in Irwins at 4 pence a dozen less. That would be three more for the same money." How many did she buy?

Betty bought 48 eggs

Betty bought 24 eggs

Betty bought 36 eggs