Answer :
speed = distance/time (formula)
Nile- 9/1= 45/?
Bob-14/1=70/?
9*5=45
14*5=70 so
1*5= 5 hours(for Nile)
1*7= 7 hours(for bob)
Nile- 9/1= 45/?
Bob-14/1=70/?
9*5=45
14*5=70 so
1*5= 5 hours(for Nile)
1*7= 7 hours(for bob)