Answer:
15
Step-by-step explanation:
1 hr: 5
2 hr: 10
3 hr: 15
If you can answer [tex]5[/tex] questions in an hour, then in [tex]3[/tex] hours you will complete [tex]15[/tex] questions.
Proportion the equality of any two ratios is called a proportion. i.e. [tex]\frac{a}{b} :: \frac{c}{d}[/tex]
According to the question,
Let Number of questions to be completed in 3 hours [tex]= X[/tex],
So,
[tex]\frac{5 Question}{1 Hour} :: \frac{X Question}{3 Hours}[/tex]
⇒ [tex]X=15[/tex]
Hence, we can say that in [tex]3[/tex] hours you will complete [tex]15[/tex] questions.
To know more about ratios click here
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