Autos in Bangalore have a fixed charge of Rs. 25 for the first 2 km and then an additional charge of Rs.13 per each additional km. If x represents the distance travelled, find an expression for the total charge.
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Solution
x represents the distance travelled. So, the distance applicable for additional charge is x-2. ∴ Total additional charge = 13(x - 2)
Therefore, total charge = Additional chrage + Fixed charge
= 13(x-2) + 25
= 13x - 1