A taxi service charges the following rates:
Distance travelled |
Charge |
First kilometre or less |
$3.80 |
Every 300 m thereafter or less |
$0.50 |
Irene paid a taxi fare of $7.80. What was the greatest distance that Irene could have travelled in the taxi? Give your answer in km.
Amount that Irene paid for the additional distance
= 7.80 - 3.80
= $4
Number of sets of $0.50 that Irene paid for the edditional distance
= 4 ÷ 0.50
= 8
Total additional distance that Irene could have travelled in the taxi
= 8 x 300
= 2400 m
1000 m = 1 km
2400 m = 2400 ÷ 1000 = 2.4 km
Greatest distance that Irene could have travelled in the taxi
= 1 + 2.4
= 3.4 km
Answer(s): 3.4 km