Question

Ratnam hired a car from a car agency which charges a flat amount of rupees x for travelling up to the 40 km and rupees y per km for every km traveled there after how much should Ratnam agency for journey of 50km ?​

Answer 1

Answer:

Let fixed charge =Rs.x and charge per kilometer =Rs.y

According to the question, x+13y=96…(i)

and x+18y=131… (ii)

On subtracting Eq.(i) from Eq. (ii),

we get x+18y−x−13y=131−96

⇒5y=35

⇒y=7

On putting the value of y=7 in Eq. (i), we get

x+13(7)=96

⇒x+91=96

⇒x=5

Hence, fixed charges is Rs.5 and charge per kilometer is Rs.7

Now, amount to be paid for travelling 25km

= Fixed charge +Rs 7×25

=5+175

=Rs.180

Hence, the amount paid by a person for traveling 25km is Rs.180