Question

The taxi charges in a city contain fixed charges and additional charge.km. the fixed charge is for a distance of upto 5 km and additional charge/km thereafter. the charge for a distance of 10 km is rs. 350 and for 25 km is rs. 800. the charge for a distance of 30 km is

Answer 1

Let the fixed cost be Rs.x and the additional charges be Rs.y
x+5y=350                                     (1)
x+20y=800                                   (2)

(2)-(1):-
x+20y-x-5y=800-350
15y=450
y=450/15
y=30

x+5(30)=350
x=350-150
x=200

The fixed cost is Rs.200 and additional cost is Rs.50 per km.