Sequence of equivalent ratios

A ................ is an equality of two ratios.

• A. Proportion

• B. Sequence

• C. Equivalent

• D. Property

I have 7 candies, you have 5 cake. What is the ratio of candy to cake?

• A. 5 : 5

• B. 35

• C.  7: 7

• D. 7 : 5

Choose the correct answer

• A. 13 : 15 = 196 : 125

• B. 13 : 15 = 26 : 30

• C. 13 : 15 = 169 : 225

• D. 13 : 15 = 25 : 30

Answer explanation

Given three numbers a; b; c is proportional to 2; 3; 5 . Which of the following relations are correct?

Applying the property of sequence of equivalent ratios, which of the following is incorrect?

We say that the numbers a, b are proportional to the numbers 3, 5; which means: (choose the correct sentence)

The sides of a triangle are in the ratio 1:2:3. Knowing the circumference is 36 cm, find its sides.

• A. 13, 12, 11

• B. 12, 15, 21

• C. 9, 10, 17

• D. 6, 12, 18

Answer explanation

Give the sides of a triangle a ratio of 1:2:3

Circumference = 36cm

The sum of the terms of the ratio = 1 + 2 + 3 = 6

First side = (1/6) × 36

= 6cm

Second side = (2/6) × 36

= 2 × 6

= 12cm

Third side = (3/6) × 36

= 6 × 3

= 18cm

So the measures of the three sides are 6, 12, 18.