50153

Question

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Worked Solution

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Variant 0

DifficultyLevel

557

Question

A kayak can be hired for different numbers of hours, as shown in the table below.


Number of hours 1 2 3 4 5 6
Cost ($) 30 40 50 60 70 80

Select the answer that shows how to calculate the cost of hiring a kayak.

Worked Solution

By trial and error,

Consider the 4th option:

$10 for every hour plus $20

Test:

2 hours = 2 × 10 + 20 =$40 ✔

5 hours = 5 × 10 + 20 =$70 ✔

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
A kayak can be hired for different numbers of hours, as shown in the table below.
>>| Number of hours | 1 |2|3|4|5|6| |:-:|:-:|:-:|:-:|:-:|:-:|:-:| | Cost ($) | 30|40|50|60|70|80|

Select the answer that shows how to calculate the cost of hiring a kayak.
workedSolution
By trial and error, Consider the 4th option: \$10 for every hour plus \$20 Test: 2 hours = 2 × 10 + 20 =\$40 ✔ 5 hours = 5 × 10 + 20 =\$70 ✔
correctAnswer
\$10 for every hour plus an extra \$20

Answers

Is Correct?Answer
x

number of hours multiplied by $30

x

$10 for every hour plus an extra $30

x

number of hours multiplied by $10

✓

$10 for every hour plus an extra $20

Variant 1

DifficultyLevel

559

Question

A sailing boat can be hired for different numbers of hours, as shown in the table below.


Number of hours 1 2 3 4 5 6
Cost ($) 30 45 60 75 90 105

Select the answer that shows how to calculate the cost of hiring one of the sailing boats.

Worked Solution

By trial and error,

Consider the 3rd option:

$15 for every hour plus $15

Test:

2 hours = 2 × 15 + 15 = $45 ✔

5 hours = 5 × 15 + 15 = $90 ✔

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
A sailing boat can be hired for different numbers of hours, as shown in the table below.
>>| Number of hours | 1 |2|3|4|5|6| |:-:|:-:|:-:|:-:|:-:|:-:|:-:| | Cost ($) | 30|45|60|75|90|105|

Select the answer that shows how to calculate the cost of hiring one of the sailing boats.
workedSolution
By trial and error, Consider the 3rd option: $15 for every hour plus $15 Test: 2 hours = 2 × 15 + 15 = $45 ✔ 5 hours = 5 × 15 + 15 = $90 ✔
correctAnswer
\$15 for every hour plus an extra \$15

Answers

Is Correct?Answer
x

number of hours multiplied by $30

x

number of hours multiplied by $15

x

$10 for every hour plus an extra $20

✓

$15 for every hour plus an extra $15