If 5 machines produce 5 articles in 5 minutes, how many machines are needed to produce 100 articles in 100 minutes?
A. 25
B. 10
C. 20
D. 5
Answer: Option D
Solution (By JKSSB Mock Tests)
5 machines take 5 minutes to make 5 articles, so 5 machine-minutes make 1 article. 100 articles need 500 machine-minutes; in 100 minutes, 5 machines are needed.
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