The area of each face of the cube in the figure is b2 cm2.
  1. Find the volume of the cube in terms of b.
  2. If b2 = 36, find the volume of the cube.
2 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
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
James bought 4k crates of oranges. Each crate has 20 oranges. He gave away 55 oranges to his neighbour.
  1. How many oranges had he left?
  2. If he sold the rest at 40¢ each and k = 8, how much money did he receive from the oranges sold? Give your answer in dollars.
2 m