Question

a film show lasted for 3 whole 2 upon 5 hours out of this 1 whole 1 upon 3 hours where is spent on advertisements what was the actual duration of the film​

Answer 1

Answer:

3whole2upon5=13/5

1whole 1 upon 3 hours =4/3

13/5-4/3=39/15 - 20/15 = 19/15

so real duration is 19/15 hours

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