7. Exercise problems VII

Form the pair of linear equations for the following problem and find their solution by substitution method.

 

The taxi charges in a city consist of a fixed charge together with the charge for the distance covered. For a distance of $10km$, the charge paid is $Rs.105$ and for a journey of $15 km$, the charge paid is $Rs.155$. What are the fixed charges and the charge per $km$? How much does a person have to pay for travelling a distance of $25 km$.

 

Fixed charge $=Rs.$

 

Charge per $km=Rs.$

 

Total cost for travelling $=Rs.$