Multiple choice

Muskan would like to complete all her homework before 10:00 p.m. in order to watch an important TV programme. She has a 40-minute assignment in each of her five prepared subjects. What is the latest time at which she can start and still complete her homework in time for the programme?

  1. 6:30 p.m.

  2. 6:40 p.m.

  3. 7:10 p.m.

  4. 7:20 p.m.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Clearly, the time nedeed to complete all five assignments = 40 x 5 = 200 minutes = 3 hours 20 minutes Thus, required time = 6:40 p.m.