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Question

Subuhi went to theatre late by 22 minutes. The show ended at 02:15 P.M. The duration of the show was 2 hours 47 minutes including intermission. At what time did she enter the theatre?

A
11:50 A.M.
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B
11:28 A.M.
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C
12:28 A.M.
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D
12:50 A.M.
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Solution

The correct option is A 11:50 A.M.
The show ended at 02:15 P.M.
Duration of show = 2 hours 47 minutes
So, the show started at
= 02: 15 - 2 hours 47 minutes
= 14: 15 - 2 hours 47 minutes
let's first subtract 2 hours alone.
Now let's subtract the remaining 47 minutes,
= 12:15 - 47 minutes
47 can be written as 15 + (47 - 15)
= 12:15 - 15 minutes - 32 minutes
= 12:00 - 32 minutes
we know,
12:00 P.M. - 30 minutes - 2 minutes
= 11:28 A.M.
Now, she got late by 22 minutes
Hence, she entered the theatre at
= 11:28 + 22 minutes
= 11:50 A.M.

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