Acity bus collected $780 in fares on one daythe price of a regular fare was $0.80 and the price of a discount fare was $0.40 if a total of 1200 people paid the fares on this bus how many people paid for the regular fare

Let the no. of people sitting on regular fare be 'x' and discount fare be 'y'

Formation Of Equations
x + y = 1200equations(i)
0.8 x + 0.4 y =780equation (ii)

x = 1200 - y
0.8 (1200 - y) + 0.4 y = 780
960 - 0.8 y + 0.4 y = 780
-0.4 y = - 180
y = 225

x =1200 - y
x = 1200 - 225
x = 975

Answer = 975 people