Solve word problems to find what time an event occurred or how long an event lasted.


Shelbi wants to run one lap around the track as fast as her friend Annabelle, who can run one lap in 1 minute and 10 seconds. Shelbi started running her lap around the track 47 seconds ago.
How much time does Shelbi have left to finish her lap if she wants to tie Annabelle's time?
Write the answer in seconds.
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0, point, 75
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4