1) The ratio of A to B is 1 : 3. The ratio of B to C is 6 : 5. What is the ratio of A to C?

2) The ratio of D to E is 2 : 3. The ratio of E to F is 4 : 5. What is the ratio of D to F?

3) The ratio of the female children to male children is 3 : 2. The ratio of male children to adults is 6 : 1. What is the ratio of female children to male children to adults?

4) The ratio of the number of silver cars to the number of green cars in a carpark is 4 : 1. The ratio of the number of green cars to the number of blue cars is 1 : 3. There are 180 silver cars. How many blue cars are there?

5) A shop sells T-shirts and jumpers in the ratio of 12 : 7. They also sell T-shirts and coats in the ratio of 9 : 4. Over a one week period, the shop sells 126 jumpers. How many coats do they sell? And how many T-shirts do they sell?

2) The ratio of D to E is 2 : 3. The ratio of E to F is 4 : 5. What is the ratio of D to F?

3) The ratio of the female children to male children is 3 : 2. The ratio of male children to adults is 6 : 1. What is the ratio of female children to male children to adults?

4) The ratio of the number of silver cars to the number of green cars in a carpark is 4 : 1. The ratio of the number of green cars to the number of blue cars is 1 : 3. There are 180 silver cars. How many blue cars are there?

5) A shop sells T-shirts and jumpers in the ratio of 12 : 7. They also sell T-shirts and coats in the ratio of 9 : 4. Over a one week period, the shop sells 126 jumpers. How many coats do they sell? And how many T-shirts do they sell?