Solved IB ACIO Question
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Q · Clockmedium · 45s
Kamala would like to complete all her home-work before 10.00 p.m. in order to watch an important TV programme. She has 40 minutes assignment in each of her five prepared subjects. What is the latest time at which she can start and still complete her home-work in the time for the programme?
TopicClock
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.25
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
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Kamala has five assignments, each requiring 40 minutes, so the total time needed is 5×40=200 minutes, which equals 3 hours and 20 minutes. To finish by 10:00 p.m., she must start 3 hours and 20 minutes earlier. Subtracting this from 10:00 p.m. gives a latest start time of 6:40 p.m.
Final Answer: Option A - 6:40 p.m.