7th Grade : Cambridge Mathematics - Unit 9 Ratio and Proportion

Which on these ratios is not equivalent to the ratio of 2 : 3

• 4 : 6

• 3 : 9

• 6 : 9

• 10 : 15

Which ratio is equivalent with ratio of 4 : 8

• 16 : 32

• 1 : 3

• 12 : 18

• 5 : 15

A box of pencils costs $2. A box of pencils contain 10 pencils. How much it cost for a pencil?

• 10 cents

• 20 cents

• 5 cents

• 1 cent

8 : 48 written to its simplest form is:

• 2 : 12

• 1 : 6

• 4 : 24

• 1 : 4

42 : 35 written to its simplest form is:

• 5 : 6

• 4 : 3

• 6 : 5

• 7 : 5

Look at this number sequence: 48, 42, A, 30, 24, B, 12, 6 . Two number are missing, write the ratio A : B to the simplest form

• 36 : 18

• 6 : 3

• 4 : 2

• 2 : 1

Adelle buys 4 umbrellas for $20. How much money needed to buy 6 umbrellas?

• $120

• $30

• $40

• $100

Fachri's age is 18 and Aisyah's age is 12. What is the ratio of their ages in the simplest form?

• 6 : 9

• 3 : 2

• 9 : 6

• 3 : 4

The ratio of Adi's and Ida's money is 5 : 4. If Ida's money is $80, how much is the sum of their money?

• $100

• $180

• $160

• $200

The amount of money earned from 5 days of work is $120. How much money earned from 15 days of work?

• $360

• $240

• $480

• $600