Question 26
An autorickshaw charges ₹ 10 for the first kilometre, then ₹ 8 for each such subsequent kilometre. The total charge (in ₹) for d kilometres is
Answer: ₹(8d+2)
Solution:
Given, amount charged by autorickshaw for first km = ₹10
Amount charged by autorickshaw, for each subsequent km = ₹8
Total distance = d km
Distance travelled with fare ₹10 = 1 km
Distance travelled with fare ₹8 = d−1
∴Total charge=10×1+(d−1)8
10+8d−8=₹(8d+2)