Answer:
356475Nrp
Step-by-step explanation:
$1=105Nrp
$3500=105×3500Nrp
=367500Nrp
Now,
Bank charges 3% commission
therefore, 3% of 367500Nrp
=3/100×367500Nrp
=11025Nrp
Then,
Required money =367500Nrp-11025Nrp
=356475Nrp
Assume uniformly accelerated motion
Vf = Vo - at => a= [Vo - Vf] / t
Vf = 0, t = 20 s => a = Vo / 20
x = Vot - at^2 / 2
x = Vot - (Vo / 20) * t^2 /2
x = 1775 feet * [1 mile / 5280 feet] = 0.336 mile
t = 20 s
=> 0.336 = 20Vo - Vo(20)^2 /(40) = 20Vo - 10 Vo = 10 Vo
=> Vo = 0.336 /10 = 0.0336 mile /s
Vo = 0.0336 mile/s * 3600 s/h = 120.96 mile / h
Therefore, the car was way over the speed limit.
Total profit=105
105/4=26.25
26×3=78
Leila made $78.