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Post-UTME Mathematics 2007 Objective — Question 3

Question 3 of 10 from the Post-UTME Screening (Post-UTME) Mathematics 2007 Objective paper, with the correct answer and a full explanation.

A motor way journey takes 3 hours at an average speed of 120km/h. How long will it take if the average speed is reduced to 80km/h?

A. 4 hours
B. 4.2 hours
C. 4.5 hoursCorrect
D. 5.4 hours

Explanation

Distance = 120 x 3 = 360km. Time at 80km/h = 360/80 = 4.5 hours.

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