**Part 1**

1) The ratio of A to B is 1 : 2. The ratio of B to C is 3 : 5. What is the ratio of A to B to C?

2) The ratio of D to E is 1 : 4. The ratio of E to F is 3 : 2. What is the ratio of D to E to F?

3) The ratio of G to H is 7 : 5. The ratio of H to I is 6 : 7. What is the ratio of G to H to I?

4) The ratio of J to K is 2 : 3. The ratio of K to L is 6 : 5. What is the ratio of J to L?

5) The ratio of M to N is 3 : 1. The ratio of M to O is 5 : 6. What is the ratio of M to N to O?

**Part 2**

1) There are 196 balls in a bag. The balls are 3 different colours; green, orange and blue. The ratio of the number of green balls to the number of orange balls is 1 : 4. The ratio of the number of orange balls to the number of blue balls is 5 : 6.

a) How many green balls are there?

b) How many orange balls are there?

c) How many blue balls are there?

2) There are 70 chocolates in a box. There are 3 different types of chocolates in the box; milk, dark and white. The ratio of milk to dark is 5 : 3. The ratio of dark to white is 4 : 1.

How many white chocolates are there?

3) A car park has cars of different colours. The ratio of the number of silver cars to the number of green cars in the carpark is 4 : 3. The ratio of the number of green cars to the number of blue cars in the carpark is 2 : 5. There are 200 silver cars.

a) How many blue cars are there?

b) How many green cars are there?

4) A shop sells T-shirts, jumpers and coats. The ratio for the number of T-shirts that they sell to the number of jumpers that they sell is 12 : 7. The ratio for the number of T-shirts that they sell to the number of coats that they sell is 9 : 4. Over a one week period, the shop sells 126 jumpers.

a) How many coats do they sell.

b) How many T-shirts do they sell.