Mrs Fu spent $\frac{3}{7}$ of her money on 30 mangoes and some apples. The ratio of the cost of each mango to the cost of each apple was 5 : 3. She bought some more mangoes with $\frac{5}{8}$ of the remaining money and saved the rest of her money. She bought a total of 205 mangoes.

1. (a)

   How many apples did Mrs Fu buy?

   Ans: (a) ___

2. (b)

   Mrs Fu used the same number of mangoes and apples she had to bake fruit tarts. In the end, the ratio of the number of mangoes left to the number of apples left was 1 : 6. How many apples did she use to bake the fruit tarts?

   Ans: (b) ___