Answer :
Pam worked on puzzle for 7380 seconds.
What is unit conversion?
Conversion of unit is a multi-step process which involves multiplication or division by a numerical factor. In it one unit of the quantity is changed to another unit of same quantity.
Given,
Pam spent 1 hour and 15 minutes on puzzle, on Saturday.
She spent 48 minutes on puzzle on Sunday.
Total time spent on puzzle by Pam
= 1 hour 15 minutes + 48 minutes
∵ 1 hour = 60 minutes
Total time spend in minutes
= 60+15+48
= 123 minutes
now, 1 minute = 60 seconds
Total time spend in seconds
= 123 × 60
= 7380 seconds.
Hence, 7380 seconds is the total time spend by Pam on the puzzle.
Learn more about unit conversion here:
https://brainly.com/question/19420601
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