Consider the word read. the distinction between the two pronunciations of the word are that it may be .

The correct answer is: Present or past tense.

The different pronunciations of the word "read" serve to differentiate its verbal tense.

Even though the word is written as "read" in both the present and the past, it is pronounced differently.

If it refers to the present it is read as /riːd/ whereas if it refers to the past it is read as /red/

n = 20

Step-by-step Explanation:
When dealing with ratios, there is always most likely a second number given to you. This number is going to be 1.
When looking for n, you have to look for all of the numbers, in this case there is only two.
1 is the hour, so now you just need the 20 minutes.
If the ratio is 1:n, this means that n would have to equal 20.
1:20