Ratios and Proportions with Variables

It is comparison of two quantities

• PROPORTION

• RATIO

• VARIABLE

• FRACTION

Equal ratios forms a ___________.

5 : 6 = 15 : n

• 18

• 24

• 32

• 36

Solve for indirect proportion.

6 : 8 = n : 4

• 8

• 10

• 12

• 16

There are three types of proportion. What are they ?

• Ratio , Inverse , Indirect

• Partitive , Proportion , Direct

• Equalities , Indirect , Direct

• Inverse , Partitive , Direct

Two numbers are 72. If we base on ratio 5 : 8.

What is n in form of 30 : n

• 42

• 36

• 52

• 30

Use inverse proportion to solve.

2 : 18 = x : 6

• 15

• 2 / 3

• 9

• 6

6 : 4n = 1 : 10

n = _____

• 12

• 15

• 18

• 10

8x : 2 = 160 : 5

• 2

• 7

• 8

• 6

5 : 7 = 10 : 14

What is extremes ?

• 7 , 10

• 5 , 10

• 5 , 14

• 7 , 14