30088

Question

{{name}} is counting the {{vehicle1}} heading south on the highway through her town.

A {{vehicle2}} passes once every {{seconds}} seconds.

If {{name}} is counting for {{hours}} hours at this rate, how many {{vehicle1}} does she count?

Worked Solution

1 {{vehicle2}} every {{seconds}} seconds

⇒\Rightarrow {{number}} {{vehicle1}} every minute
∴\therefore {{vehicle3}} in {{hours}} hours = {{hours}} ×\times {{number}} ×\times {{minute}}
= {{{correctAnswer}}}

Variant 0

DifficultyLevel

537

Question

Sandra is counting the cars heading south on the highway through her town.

A car passes once every 6 seconds.

If Sandra is counting for 2 hours at this rate, how many cars does she count?

Worked Solution

1 car every 6 seconds

⇒\Rightarrow 10 cars every minute
∴\therefore Cars in 2 hours = 2 ×\times 10 ×\times 60
= 1200

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
name
Sandra
vehicle1
cars
vehicle2
car
seconds
6
hours
2
number
10
vehicle3
Cars
minute
60
correctAnswer
1200

Answers

Is Correct?Answer
x

600

x

720

✓

1200

x

1440

Variant 1

DifficultyLevel

540

Question

Camilla is counting the cars heading south on the highway through her town.

A car passes once every 4 seconds.

If Camilla is counting for 4 hours at this rate, how many cars does she count?

Worked Solution

1 car every 4 seconds

⇒\Rightarrow 15 cars every minute
∴\therefore Cars in 4 hours = 4 ×\times 15 ×\times 60
= 3600

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
name
Camilla
vehicle1
cars
vehicle2
car
seconds
4
hours
4
number
15
vehicle3
Cars
minute
60
correctAnswer
3600

Answers

Is Correct?Answer
x

1240

x

2400

✓

3600

x

4800

Variant 2

DifficultyLevel

539

Question

Bronwyn is counting the trucks heading south on the highway through her town.

A truck passes once every 12 seconds.

If Bronwyn is counting for 4 hours at this rate, how many trucks does she count?

Worked Solution

1 truck every 12 seconds

⇒\Rightarrow 5 trucks every minute
∴\therefore Trucks in 4 hours = 4 ×\times 5 ×\times 60
= 1200

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
name
Bronwyn
vehicle1
trucks
vehicle2
truck
seconds
12
hours
4
number
5
vehicle3
Trucks
minute
60
correctAnswer
1200

Answers

Is Correct?Answer
x

240

✓

1200

x

1440

x

2400

Variant 3

DifficultyLevel

540

Question

Zilda is counting the cars heading south on the highway through her town.

A car passes once every 3 seconds.

If Zilda is counting for 3 hours at this rate, how many cars does she count?

Worked Solution

1 car every 3 seconds

⇒\Rightarrow 20 cars every minute
∴\therefore Cars in 3 hours = 3 ×\times 20 ×\times 60
= 3600

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
name
Zilda
vehicle1
cars
vehicle2
car
seconds
3
hours
3
number
20
vehicle3
Cars
minute
60
correctAnswer
3600

Answers

Is Correct?Answer
x

180

x

1200

✓

3600

x

5400

Variant 4

DifficultyLevel

541

Question

Domi is counting the trucks heading south on the highway through her town.

A truck passes once every 2 seconds.

If Domi is counting for 3 hours at this rate, how many trucks does she count?

Worked Solution

1 truck every 2 seconds

⇒\Rightarrow 30 trucks every minute
∴\therefore Trucks in 3 hours = 3 ×\times 30 ×\times 60
= 5400

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
name
Domi
vehicle1
trucks
vehicle2
truck
seconds
2
hours
3
number
30
vehicle3
Trucks
minute
60
correctAnswer
5400

Answers

Is Correct?Answer
x

600

x

900

x

3600

✓

5400