The average mass of Lynn and Joan is 18p kg. If Joan is 4p kg lighter than Lynn, find Lynn's mass in kg.
2 m
Container A and Container B are fully filled with water. If all the water in Container A is poured into Tank C, it is 30 litres short of filling it to the brim. If all the water in Container B is poured into the same tank, it is 56 litres short of filling it to the brim. If the water from both containers is poured into the same tank, it will completely fill it. If both Tank C and Container B are completely filled, how much more water can Tank C fill than Container B?
2 m
Fill in the blanks in units (Eg 3 u) or unit equations (Eg 1 u + 2).

Adam and Bryan have some stickers.
27 of the sweets Adam has is 6 less than 35 of what Bryan has.
1. Number of stickers that Bryan has = ___________
2. Number of stickers that Adam has = ___________
3. Total number of stickers = ___________
4. Difference in the number of stickers between Adam and Bryan = ___________
4 m
Jimmy and Kenny had $180 in all. Ken had$(12b + 6) more than Jim. How much did Jim have if b = 7?
2 m
The ratio of coconuts to mangosteens is 2 : 7. If 348 mangosteens was added, the ratio of coconuts to mangosteens will be 2 : 11. How many more mangosteens than coconuts are there in the end?
2 m
PSLE
Cindy is y years old. Sarah is three times as old as Cindy and Sarah is 5 years older than Jim.
1. What is Jim's age in terms of y in years?
2. If Cindy is 13 years old, how many years older is Jim than Cindy in years?
2 m
PSLE
Use the table given to answer questions (a) and (b).
1. What was the total number of muffins sold last week?
2. Express your answer in terms of w in the simplest form. If w = 20, how many more muffins were sold on Sunday than on Saturday?
2 m
Tom has a mass of 8r kg. John is 4 kg heavier than Tom. The mass of May is twice the total mass of the Tom and John.
1. Find the total mass of the 3 children in terms of r.
2. If r = 2, find the average mass of the 3 children.
2 m
Sandy, Robert and Matthew shared $450. Robert received 20% more than Sandy while Matthew received 20% less than Sandy. How much more than Matthew did Robert receive? 2 m PSLE Abel, Ben and Cindy share$15z. Abel gets $z more than Ben and Cindy gets$2z more than Ben. If z = 7, how much money does Ben get?
2 m