The road transport corporation (RTC) of a city wants to know whether a particular bus-route is running on profit or loss.

Busfair.py

# The road transport corporation (RTC) of a city wants to know whether a particular bus-route is running on profit or loss.

# Assume that the following information are given:
# Price per litre of fuel = 70
# Mileage of the bus in km/litre of fuel = 10
# Price(Rs) per ticket = 80

# The bus runs on multiple routes having different distance in kms and number of passengers.
# Write a function to calculate and return the profit earned (Rs) in each route. Return -1 in case of loss.

# Also write the pytest test cases to test the program

def calculate(distance,no_of_passengers):
    cost = 0
    cost = 70 * distance/10
    rest = 0
    rest = no_of_passengers * 80 
    if cost <= rest :
        return abs(cost - rest)
    else :
        return -1

distance=20
no_of_passengers=50
print(calculate(distance,no_of_passengers))

3860.0

3860