PSLE
Yen 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 2 minutes and travelled a total distance of 5.1 km to reach Yen's home. How much was her taxi fare?

Taxi Fare
First km	$3.70
Every additional 500 m or less	$0.22
Every 30 seconds waiting or less	$0.20

Amount to pay for the first 1 km = $3.70

Remaining distance to pay for
= 5.1 - 1
= 4.1 km

1 km = 1000 m
4.1 km = 4.1 x 1000 = 4100 m

Sets of additional 500 m
= 4100 ÷ 500
= 8 r 100

Sets of additional 500 m or less
= 8 + 1
= 9

Amount to pay for remaining 4.1 km
= 9 x 0.22
= $1.98

1 min = 60 s
2 min = 2 x 60 = 120 s

Sets of 30 seconds of waiting
= 120 ÷ 30
= 4 r 0

Amount to pay for sets of 30 seconds of waiting or less
= 4 x 0.20
= $0.80

Yen's taxi fare
= 3.70 + 1.98 + 0.80
= $6.48

Answer(s): $6.48