Answer: 20 questions
Step-by-step explanation:
From the question, Noah is taking an online survey and after answering 16 questions, he gets a message that he has completed 80% of the survey.
To get the total number of questions in the survey goes thus:
Let the total number of questions be y.
80% of y = 16
80/100 × y = 16
0.8 × y = 16
0.8y = 16
Divide both side by 0.8
y = 16/0.8
y = 20
The survey has 20 questions.
