Question

Event C started at 1:42 p.m. and lasted for 51 minutes. At what time does the event end?

• A. 2:33 p.m.
• B. 2:30 p.m.
• C. 2:32 p.m.
• D. 2:31 p.m.

Answer 1

The correct option is A 2:33 p.m.

• Event C started at 1:42 p.m. and lasted for 51 minutes.
  
• Elapsed time is 51 minutes.
  
• To calculate the end time, the following formula can be used.
  
• 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 = 1:42 p.m. + 8 minutes + 10 minutes + 10 minutes + 10 minutes + 10 minutes + 3 minutes
  = 1:42 p.m. + 51 minutes
  = 2:33 p.m.
  
• $\text{Therefore, event C ends at 2:33 p.m.}$

Hence, option A is correct.