Question

Event B started at $1:15$ p.m. and lasted for $24$ minutes. At what time does the event end?

• A. 1:28 p.m.
• B. 1:38 p.m.
• C. 1:29 p.m.
• D. 1:39 p.m.

Answer 1

The correct option is D 1:39 p.m.

• Event B started at $1:15$ p.m. and lasted for $24$ minutes.
  
• Elapsed time is $24$ minutes.
  
• To calculate the end time, the following formula can be used.
  
  $\text{End time = Start time + Time elapsed}$
  
• To find the end time of the event, we use the number line and by adding elapsed time we will get the end time.

• End time $=1:15$ p.m. $+10$ minutes $+10$ minutes $+4$ minutes
  $=1:15$ p.m. $+24$ minutes
  $=1:39$ p.m.
  
• $\text{Therefore, event B ends at}1:39\text{p.m.}$

Hence, option B is correct.