PSLE
Wendy took a taxi from her office to her home. Her taxi fare was based on the charges shown. The taxi stopped once at a traffic light for 3 minutes and travelled a total distance of 9.8 km to reach Wendy's home. How much was her taxi fare?

Taxi Fare
First km	$3.60
Every additional 500 m or less	$0.21
Every 40 seconds waiting or less	$0.20

Amount to pay for the first 1 km = $3.60

Remaining distance to pay for
= 9.8 - 1
= 8.8 km

1 km = 1000 m
8.8 km = 8.8 x 1000 = 8800 m

Sets of additional 500 m
= 8800 ÷ 500
= 17 r 300

Sets of additional 500 m or less
= 17 + 1
= 18

Amount to pay for remaining 8.8 km
= 18 x 0.21
= $3.78

1 min = 60 s
3 min = 3 x 60 = 180 s

Sets of 40 seconds of waiting
= 180 ÷ 40
= 4 r 20

Sets of 40 seconds of waiting or less
= 4 + 1
= 5

Amount to pay for sets of 40 seconds of waiting or less
= 5 x 0.20
= $1.00

Wendy's taxi fare
= 3.60 + 3.78 + 1.00
= $8.38

Answer(s): $8.38