Answer:
The estimated taken to drive downtown using App is 38.4 minutes
Step-by-step explanation:
Given as :
The initial time taken to drive downtown = i = 48 minutes
The percentage error of time = r = 20%
Let The estimated time using app = t min
Let the time = 1 min
Now, according to question
The estimated time using app = The initial time taken to drive downtown × [tex](1-\dfrac{\textrm rate}{100})^{\textrm time}[/tex]
Or, t minutes = i minutes × [tex](1-\dfrac{\textrm r}{100})^{\textrm 1}[/tex]
Or, t = 48 minutes × [tex](1-\dfrac{\textrm 20}{100})^{\textrm 1}[/tex]
Or, t = 48 minutes × [tex]\dfrac{100-20}{100}[/tex]
Or, t = 48 minutes × [tex]\dfrac{80}{100}[/tex]
∴ t = [tex]\dfrac{48\times 80}{100}[/tex] minutes
I.e t = 38.4 minutes
Or, The estimated time using app = t = 38.4 min
Hence, The estimated taken to drive downtown using App is 38.4 minutes Answer
