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
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
Find the value of 5a - 9b2 + 3c when a = 10, b = 2 and c = 12.
2 m
PSLE
Andy had 1.4 m of wire. He used some of it to make the figure as shown.
1. How much of the wire did Andy use to make the figure? Leave your answer in the simplest form in terms of x.
2. If x = 15, how much of the wire was not used to make the figure? Leave your answer in metres.
2 m
Gary weighs x kg while Jim weighs 2y kg.
1. Find the average mass of each boy in terms of x and y.
2. If x = 47 and y = 19, find the average mass of each boy.
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 PSLE Find the value of 7 + 2a3 when a = 8. Give your answer as a mixed number in the simplest form. 2 m PSLE Find the value of 2w - 6 + 3w5 when w = 8. Give your answer as a mixed number in the simplest form. 2 m Mary baked 400 cookies. She ate 2p of them and divided the remainder equally among her 4 friends. 1. Find the number of cookies each of her friends received in terms of p? 2. If p = 12, how many cookies did each of her friends receive? 2 m The total mass of Cindy, Jen and Marvin is 15p kg. Cindy has a mass of 5p kg. Jen is 2 kg heavier than Cindy. 1. What is Marvin's mass in terms of p? 2. If p = 10, what is Marvin's mass? 3 m The table shows the number of pens sold at a bookshop last week. 1. What was the total number of pens sold last week? Express your answer in terms of b the simplest form. 2. If b = 20, how many pens were sold on Sunday? 3 m Sam saved$9 each day and Joelle saved $c more than Sam each day. After 2 weeks, they were still short of$30 to buy a TV set.
1. How much did the TV set cost? Express your answer in terms of c.
2. If c = $2, how much did the TV set cost? 3 m Abel has b coins. Bobby has three times as many coins as Abel but 8 coins fewer than Jason. 1. How many coins do they have altogether? (Express your answer in terms of b). 2. If b = 9, how many stamps do the three boys have altogether? 3 m Lina and Wendy went shopping. After Lina spent$85j, Wendy had 5 times as much as Lina. If Lina had $21j more than Wendy at first, 1. Express the amount of money that Lina had at first in terms of j. 2. If j = 10, find the amount of money the two ladies had left after shopping. 3 m Margaret bought c kg of mangoes at$k per kg and w kg of papaya at $y per kg. 1. Find the amount she paid for the fruits in terms of c, k, w and y. 2. If c = 8, k = 7, w = 5 and y = 4, how much change did Mrs Lim receive if she paid the fruit seller with a$100 note?
3 m
Tom has $a. Randy has$2m more than Tom. Wayne has \$3n less than Randy.
1. Find the amount of money Wayne has in terms of x, m and n.
2. Find the total amount of money the three boys have in terms of x, m and n.
3. If a= 20, m = 7 and n = 8, how much does Wayne have?
3 m