PSLE
Marion 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 8.4 km to reach Marion's home. How much was her taxi fare?

Taxi Fare
First km	$2.40
Every additional 400 m or less	$0.25
Every 30 seconds waiting or less	$0.20

Amount to pay for the first 1 km = $2.40

Remaining distance to pay for
= 8.4 - 1
= 7.4 km

1 km = 1000 m
7.4 km = 7.4 x 1000 = 7400 m

Sets of additional 400 m
= 7400 ÷ 400
= 18 r 200

Sets of additional 400 m or less
= 18 + 1
= 19

Amount to pay for remaining 7.4 km
= 19 x 0.25
= $4.75

1 min = 60 s
3 min = 3 x 60 = 180 s

Sets of 30 seconds of waiting
= 180 ÷ 30
= 6 r 0

Amount to pay for sets of 30 seconds of waiting or less
= 6 x 0.20
= $1.20

Marion's taxi fare
= 2.40 + 4.75 + 1.20
= $8.35

Answer(s): $8.35