Question

A film show lasted for 3 3/2 hours. Out of this ,1 1/3 hours were spent on advertisements. What was the actual duration of the film

Answer 1

Answear:

Movie lasted 3 hours and 10 minutes

1. You have to convert 3 3/2 and 1 1/3 to a fraction.
2. You have to multiply 9/2 by 3 and 4/3 by 2 to get the least common multiple of those two numbers.
3. Subtract 8/6 from 27/6 and you get 19/6.
4. Convert 19/6 into a mixed number and you get 3 1/6 which is 3 hours and 10 minutes because the clock has 60 minutes so 1/6 is ten minutes.

`3(3)/(2) - 1 (1)/(3) = (9)/(2) - (4)/(3) = (27 - 8)/(6) = (19)/(6) = 3 \: (1)/(6)`

Answer 2

3 3/2 hours as a decimal= 4.5

1 1/3 hours as a decimal = 1.3

Duration of the film show = 4.5 hours

Hours spent on advertisements = 1.3 hours

Actual duration of the film = 4.5 - 1.3 hours

= 3.2 hours

3.2 hours as a fraction = 3 1/5 hours.

Therefore, the actual duration of the film was 3 1/5 hours.