Question

Auto's in Bangalore have a fixed charge of Rs. 25 for first 2 km and then an additional charge of Rs. 13 per additional km. If $x$ represents the distance travelled, the expression for total charge is

• A. 13$x$ + 1
• B. 13$x$ - 1
• C. 25 + 13$x$
• D. None of these

Answer 1

The correct option is B

13$x$ - 1

$x$ represents the distance travelled. So, the distance applicable for additional charge is $x$ - 2.
$\therefore$ Total additional charge = 13($x$ - 2)
Therefore total charge = Additional chrage + Fixed charge
= 13($x$ - 2) + 25
= 13$x$ - 1