Analyze the following questions and choose the correct answer.

16) In the concept of proportion, the statement saying that the product of the means is equal to the product of the extremes is _____.

A. true
B. false
C. maybe
D. neither true nor false

18)When two ratios are equivalent, they represent a ______________?

A. extremes
B. means
C. proportion
D. fraction

19) In each proportion, the outer terms (first and last terms) are called the _______?

A. extremes
B. means
C. proportion
D. fraction

20) The inner terms (second and third terms) in a proportion are called the___________?

A. extremes
B. means
C. proportion
D. fraction

21) Which pair of ratios shows a direct proportion?

A. 6:5 and 2:4
B. 4:3 and 8:6
C. 2:1 and 6:4
D. 5:2 and 5:6

22) Which of the following situations shows direct proportion?

A. Finding the circumference of a circle given its radius.
B. Increasing the speed of travel and the time it takes to reach the destination.
C. Decreasing the number of workers against the number of days to finish the job.
D. All of these

23) Using the concept of direct proportion, all are proportions to 2 : 6, EXCEPT

A. 5:15
B. 10:25
C. 10:30
D. 15:45

24) In a direct proportion, when one quantity increases the other quantity ______________.

A. remains the same
B. increases
C. fluctuates
D. decreases

25) Your mother placed 6 flowers in a vase. How many vases does your mother need for 30 flowers?

A. 9
B. 7
C. 5
D. 3​