Answer:
The time taken Marcus to deliver 100 papers than 72 papers is 56 minutes longer
Step-by-step explanation:
We are given that it takes Marcus to deliver 9 papers = 18 minutes
So, time taken to deliver 1 paper =
= 2 minutes
Therefore time taken by Marcus to deliver 100 papers
= 2 x 100
= 200 minutes
and time taken to deliver 72 papers = 144 minutes
So, the difference between both these time taken
= 200-144
= 56 minutes
Hence, it takes Marcus 56 minutes longer to deliver 100 papers than to deliver 72 papers.