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Rates of Charges• Taxi Fare
• Postage
• Car Park charges
Rates of Charges at carparksCharged hourly
Charged half hourly
Represented by
a full circle
Represented by
a semi circle
• An example of rates charged hourly
First hour Free
Second hour $1 per hour
After the second hour
$2 per hour
First
2 nd
3rd, 4th, 5th,….
Mr Chia parked his car for 4 hours. How much did he have to pay?
$2 per hourAfter the second hour
$1 per hourSecond hour
FreeFirst hour
3rd, 4th, 5th,….
First
2 nd
An example of rates charged hourly
• An example of rates charged hourly• Mr Chia parked his car for 4 hours. How much
did he have to pay?
First
hour
Free
Second
hour
$1 per hour
After the second
hour
$2 per hour
1 st
2nd
3rd
4th
Mr Chia parked his car for 4 hours. How much did he have to pay?
First hour Free
Second
hour
$1 per hour
After the second
hour
$2 per hour
1h x $1/h= $1
2h x $2/h = $4
free
Total cost for 4 hours of parking:
$1 + $4 = $5
• Another example of rates charged hourly• Mr Tan parked his car at the same car park from 1pm
to 5.30pm. How much did he have to pay?
$2 per hourAfter the second hour
$1 per hourSecond hour
FreeFirst hour
1 st
3rd
4th
2nd
3rd, 4th, 5th,….
First
2 nd
He parked his car for 4 ½ hours
• An example of rates charged hourly• Mr Tan parked his car from 1pm to 5.30pm. How much did he
have to pay?
First
hour
Free
Second
hour
$1 per hour
After the second
hour
$2 per hour
1 st
2nd
3rd
4th
He parked his car for 4 ½ hours
• Mr Tan parked his car from 1pm to 5.30pm. How much did he have to pay?
First hour Free
Second
hour
$1 per hour
After the second
hour
$2 per hour
1h x $1/h = $1
3h x $2/h = $6
free
Total cost for 4 1/2 hours of parking:
$1 + $6 = $7
Round up to 3 hours
He parked his car for 4 ½ hours
1/2
• An example of rates charged half hourly
First hour Free
Every
Additional
half hour
$1
every ½ hour
1st
1/2
• Mr Tan parked his car from 1.30 pm to 4 pm. How much did he have to pay?
First hour Free
Every
Additional
half hour
$1
every ½ hour
1 st
2nd1st
He parked his car for 2 ½ hours
• Mr Tan parked his car from 1.30 pm to 4 pm. How much did he have to pay?
First hour Free
Every
Additional
half hour
$1
every ½ hour
1 st
2nd
1/2
1st
He parked his car for 2 ½ hours
• Mr Tan parked his car from 1.30 pm to 4 pm. How much did he have to pay?
1 st
Total cost for 2 1/2 hours of parking $3
Free
3 x $1
1/2
1st
First hour Free
Every
Additional
half hour
$1
every ½ hour
He parked his car for 2 ½ hours
• Another example of rates charged ½ hourly• Mr Ahmad parked his car from 12noon to 3 pm.
How much did he have to pay?
He parked his car for 3 hours
• Mr Ahmad parked his car from 12noon to 3 pm. How much did he have to pay?
First hour Free
Every
Additional
half hour
$1
every ½ hour
1 st
2nd
3rd1/2
1st
He parked his car for 3 hours
1/2
1st
• Another example of rates charged ½ hourly• Mr Ahmad parked his car from 12noon to 3 pm. How much did he
have to pay?
First hour Free
Every
Additional
half hour
$1
every ½ hour
1 st
2nd2nd
3rd3rd
He parked his car for 3 hours
1/2
1st
Mr Ahmad parked his car from 12noon to 3 pm. How much did he have to pay?
First hour Free
Every
Additional
half hour
$1
every ½ hour
1 st
2nd
3rd
Total cost for 3 hours of parking $4
FREE
4 x $1
