Ratio - Revision 1 (P5 Ratio)

Simplify 10 : 4

The ratio of the number of red beads to the number of blue beads is 5 : 6. What is the ratio of the number of blue beads to the total number of beads?

• 6 : 5

• 5 : 11

• 6 : 11

• 11 : 6

There are 20 pens in a box. 12 of them are red pens, the rest are blue pens. What is the ratio of the number of red pens to the number of blue pens?

• 3 : 2

• 3 : 5

• 2 : 3

• 2 : 5

The ratio of Ali's money to Peter's money is 2 : 7. Ali has $14. How much money does Peter have?

Ans: $________

Mary and Sue have a total of $24. The ratio of Sue's money to Mary's money is 1 : 5. How much money does Sue have?

Ans: $__________

Ribbon A is 10 cm longer than Ribbon B. The ratio of the length of Ribbon A to the length of Ribbon B is 9 : 7. Find the length Ribbon A.

Ans: ________ cm

• 35

• 45

• 80

12 : 15 = ______ : 35

The missing number is __________.