Question

Michael Phelps has been working on improving his time in the 500 yard freestyle competition.His first time was 4 minutes and 25 seconds. He improved his time by 13 seconds. The next timehe swam, he improved his time by 16 seconds. At the competition, he got his best time when heimproved by 8 more seconds. What was Michael's best swimming time?

Answer 1

Initial time = 4 minutes and 25 seconds

first improve = 13 seconds

second improve = 16 seconds

third improve = 8 seconds

First, we have to add all the improvements:

13+16+8 = 37 seconds

Then we have to subtract the result to the initial time:

4m 25 sec -37 sec =

Since 1 minute = 60 seconds

4 minutes x 60 = 240 seconds

240 + 25 sec = 265 seconds

4m 25 sec = 265 seconds

Back with the subtraction:

265 sec-37 sec = 228 seconds

Michaels best swimming time was 228 seconds.

To convert it into minutes:

228 /60 = 3.8 minutes