Question

If an event starts at $10:15$ a.m. and ends at $1:08$ p.m., find the duration of the event.

• A. $3$ h and $53$ min
• B. $3$ h and $43$ min
• C. $2$ h and $53$ min
• D. $2$ h and $43$ min

Answer 1

The correct option is C $2$ h and $53$ min

Given, the event starts at $10:15$ a.m. and ends at $1:08$ p.m.

Let’s jump by an hour from $10:15$ a.m.
So, we land at $11:15$ a.m.

Taking another jump of an hour from $11:15$ a.m., we will land at $12:15.$
Since $12:15$ is a time after $12$ noon, we will use p.m. So, the time will be $12:15$ p.m.

Taking another jump of an hour from $12:15$ p.m., we will land at $1:15$ p.m.
Since, $1:15$ p.m. is beyond the end time, i.e., $1:08$ p.m., we will not jump by an hour now.

Instead, we will jump by $45$ minutes from $12:15$ p.m.
So, we land at $1:00$ p.m.

Now, we need a jump of $8$ minutes to reach $1:08$ p.m.



So, the time duration between $10:15$ a.m. and $1:08$ p.m. $=1h+1h+45$ min $+8$ min $=2h$ and $53min$.