A taxi service charges the following rates:
Distance travelled |
Charge |
First kilometre or less |
$3.90 |
Every 400 m thereafter or less |
$0.60 |
Erika paid a taxi fare of $6.90. What was the greatest distance that Erika could have travelled in the taxi? Give your answer in km.
Amount that Erika paid for the additional distance
= 6.90 - 3.90
= $3
Number of sets of $0.60 that Erika paid for the edditional distance
= 3 ÷ 0.60
= 5
Total additional distance that Erika could have travelled in the taxi
= 5 x 400
= 2000 m
1000 m = 1 km
2000 m = 2000 ÷ 1000 = 2 km
Greatest distance that Erika could have travelled in the taxi
= 1 + 2
= 3 km
Answer(s): 3 km