Waec Model Questions Vol1 2021 Commerce Question 18
Practice objective / multiple choice question 18 from the 2021 Waec Model Questions Vol1 Commerce examination.
A truck travels 120 km at 60 km/h, then 80 km at an unknown speed v km/h, and finally 100 km at 80 km/h. The whole journey takes exactly 5 hours. (a) Find the unknown speed v. (b) If the driver can increase the unknown‑speed segment by 20% without altering the other two segments, what is the time saved, in minutes, compared with the original 5‑hour schedule?
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About This Question
This is Waec Model Questions Vol1 2021 Commerce Question 18. It is one of the objective questions from the 2021 Waec Model Questions Vol1 Commerce examination.
Difficulty level: Medium .
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