A student skipped a step when she tried to convert 15 hours to seconds, and
she got the following incorrect result:
15 hours
60 seconds
1 minute
= 900 seconds
What conversion ratio did she skip in this multiple-step conversion?
O A.
60 seconds
1 minute
B.
60 minutes
1 hour
C.
1 hour
60 minutes
D.
1 minute
60 seconds