The capacity of a printer is 5 lines per second and it can print the article in 5 minutes. In how much time can a new laser printer with a capacity of 7 lines per second print the same article?

198.18 seconds
202.18 seconds
210.18 seconds
214.28 seconds

Correct answer: 214.28 seconds

Solution

At 5 lines per second for 5 minutes, the article has \(5 \times 300 = 1500\) lines. At 7 lines per second, time taken is \(1500/7 = 214.2857\) seconds, which is about 214.28 seconds.

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