Level 3
2 u - 3 p = 1
2 p + 3 u = 21

Find the following values.

1. 1 u
2. 1 p

Level 3
The ratio of Zoe's to Isabelle's incomes was 6 : 1 at first. After Zoe and Isabelle were given another $654 and $341 respectively, Zoe had 4 times as much money as Isabelle. How much did both of them have in the end?

Level 3
2 u + 3 p = 37
2 p - 3 u = 3

Find the following values.

1. 1 u
2. 1 p

Level 3
7 p - 3 u = 25
5 u - 4 p = 12

Find the following values.

1. 1 u
2. 1 p

Level 3
Beryl has 2 containers. A and B of different capacities. If Container A is filled by a tap at a rate of 3 litres per minute and Container B is filled by a tap at a rate of 5 litres per minute, when Container A is completely filled, 5 litres of water flowed out from Container B. If Container A is filled by a tap at a rate of 4 litres per minute and Container B is filled by a tap at a rate of 3 litres per minute, when Container A is completely filled, Container B is only half-filled. What is the capacity of Container B?