Mr. Potter's class will take a test for 1 1/2 hours. They need to finish by 11:40 to get to lunch on time.

What is the latest time the class can start the test to get to lunch on time?

Answer :

kristin14
10:10 because you subtract 1 hour and 30 mins from the original time
Diana5674
10:10 because 1/2 = 30mins

So 11-1 : 40-30 = 10:10

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