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20 students can solve 100 questions in an hour, then how many students can solve 500 question in 2 hours?

20 students can solve 100 questions in an hour, then how many students can solve 500 question in 2 hours? Correct Answer 50

Given:

20 students can solve 100 questions in an hour

Calculation:

Let the number of students be S which can solve 500 questions in 2 hours 

(20 × 1)/100 = (S × 2)/500

⇒ 2S = 100

⇒ S = 100/2 

⇒ S = 50

∴ 50 students can solve 500 questions in 2 hours.

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