Let's say there were 100 packages
For 60 packages,45 packages per hour
Time taken in 60 packages
4560=34hour
For 40 packages, 12 package per hour
Time taken in 40 packages
1240=310hour
Total time taken =34+310=314hour
Total packages=100
Average rate=314100=14100×3
7150 Package /hour
Or 21.43 package /hour
Comments