G6 Summer Holiday Quiz

8 : 7 = 40 : ？

• 14

• 21

• 28

• 35

Amber cuts a 1-m string into 3 pieces. The shortest piece is 20 cm long and the longest piece is 50 cm long. Find the ratio of the length of the shortest piece to the length of the middle piece to the length of the longest piece.

• 1 : 2 : 3

• 1 : 2 : 5

• 2 : 3 : 5

• 2 : 5 : 3

Max and Susie baked some cupcakes in the ratio 4 : 9. Max baked 180 fewer cupcakes than Susie. How many cupcakes did they bake altogether?

• 585

• 468

• 324

• 260

? : 3 = 72 : 27

(a)  

32 : ? : 44 = ? : 15 : 11

(a)  

Express 24 : 18 : 54 in its simplest form

(a)  

The age of three cousins are in the ratio 1 : 3 : 7. If the youngest cousin is 30 years younger than the eldest cousin, how old is the middle cousin?

(a)  

Express 4.5% as a decimal

• 0.045

• 0.45

• 4.05

• 4.5

Express 13/20 as a percentage

• 7%

• 35%

• 13%

• 65%

Chef Wan had 300 eggs. He used 30% of them to make some sponge cakes. How many eggs did he have left?

• 70

• 90

• 200

• 210