F1- Chapter 4 - Ratios

Which of the following statements is correct?

• The ratio of $3l$ to $2700ml$ is 1 : 900.

• The ratio of 28cm to 2m is 7 : 50.

• The ratio of 21 days to 3 weeks is 7 : 1.

• The ratio of 1 hour to 20 minutes is 3 : 2.

Which of the following is correct?

• 18 : 20 = 10 : 19

• 3.5 : 6.0 = 3 : 6

• $\frac{3}{4}\ :\ 2\ =\ 3\ :\ 6$

• 1.5 : 4 = 3 : 8

All the following are correct except

• 5 kg : 15 kg = 1 : 3

• 5 km : 2500 m = 1 : 2

• 400 kg : 1 tonne = 2 : 5

• 30 cm : 0.3 m = 1 : 1

Determine the equivalent ratios of the shaded part.

Based on the diagram, determine which of three quantities ratio are correct.

( * more than ONE answer.)

• Rice : Cooking Oil : Tomatoes = 3 : 2 : 5

• Pencil : Pen : Book = 1 : 3 : 10

• Tomatoes : Rice : Cooking oil = 3 : 5 : 2

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

The diagram shows three squares A, B and C. Represent

the length of square A to the length of square B to the length of square C in the form of a : b : c.

The diagram shows three squares A, B and C. Represent

the area of square A to the area of square B to the area of square C in the form of a : b : c.

Which of the following pairs of ratios are equivalent ratios?

• 84 : 36 and 77 : 33

• 63 : 49 and 18 : 12

• 7 : 28 and 13 : 42

• 9 : 15 and 25 : 35

Which of the following ratios is not equivalent ratio to the ratio 4 : 9 ?

• 20 : 45

• $\frac{1}{4}\ :\ \frac{1}{9}$

• 32 : 72

• 60 : 135

The diagram shows the matches of equivalent ratios. Which of the matches are correct?

• (a)

• (b)

• (c)

• (d)