since one person equals three hours then if u have another man help him then it will take have the time = one hour and thirty minutes
Use the formula
i = prt
p = principle amount = 500
r = rate of interest = 4% = 0.04
t = time in years = 5
i = 500*0.04*5 = 100
so the amount of interest earned is $100
C
When I did the math I came up as 3.88 but if you have to round up it wound be 4 or 3.9
