Sally bought some chocolates and gave half of them to Mabel. Mabel bought some lollipops and gave half of them to Sally. Mabel ate 7 lollipos and Sally ate 16 chocolates. After that, the ratio of the number of lollipops to the number of chocolates Mabel had was 1 : 8 and the ratio of the number of lollipops to the number of chocolates Sally had was 1 : 5. How many lollipops did Mabel buy at first?
(5 Marks)
Answer if you can!