Practice question

MCQ

Question

Trucks (10 m long) and cars (5 m long) go on a single lane bridge. There must be a gap of at least 20 m after each truck and a gap of at least 15 m after each car. Trucks and cars travel at a speed of 36 km/h. If cars and trucks go alternately. what is the maximum number of vehicles that can use the bridge in one hour?

Options

Choose one · Correct answer highlighted

1440 Correct 1200 720 600

Explanation

1440 is correct because it matches established molecular principles where 1440 represents the functional mechanism. Alternatives such as 1200, 720 contradict experimental evidence and standard textbook descriptions. This reasoning aligns with standard definitions, laboratory observations and quantitative analysis commonly taught in biotechnology curricula.

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