A parcel delivery company delivered 103,300 packages last year, when its average employment was 84 drivers. This year, the firm handled 112,340 deliveries with 95 drivers. What was the percentage change in productivity over the past years?

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min

b. a lightning bug, plug of grass, and a worm