Number, NAP 15-2025

Question

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Worked Solution

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Variant 0

DifficultyLevel

458

Question

Olivia bought 3 notebooks and a pen for $9.50. The pen cost $2.00.

What would 5 notebooks and 2 pens cost?

Worked Solution
Cost of 3 notebooks = $9.50 - $2.00
= $7.50
Cost of 1 notebook = $7.50 ÷\div 3
= $2.50
Cost of 5 notebooks and 2 pens = 5 ×\times $2.50 + 2 ×\times $2.00
= $12.50 + $4.00
= $16.50

∴\therefore 5 notebooks and 2 pens would cost $16.50

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Olivia bought 3 notebooks and a pen for \$9.50. The pen cost \$2.00. What would 5 notebooks and 2 pens cost?
workedSolution
| | | | ---------------------- | ---------------------- | |Cost of 3 notebooks | \= \$9.50 - \$2.00| | | = \$7.50| |Cost of 1 notebook | \= \$7.50 $\div$ 3| | | = \$2.50| |Cost of 5 notebooks and 2 pens | \= 5 $\times$ \$2.50 + 2 $\times$ \$2.00| | | = \$12.50 + \$4.00| | | \= {{{correctAnswer}}} |

$\therefore$ 5 notebooks and 2 pens would cost {{{correctAnswer}}}
correctAnswer
\$16.50

Answers

Is Correct?Answer
x

$14.50

x

$15.50

✓

$16.50

x

$17.50

Variant 1

DifficultyLevel

460

Question

At a bakery, Marcus bought 2 muffins and 3 cookies for $11.40. Each cookie costs $1.80.

What would 4 muffins and 1 cookie cost?

Worked Solution
Cost of 3 cookies = 3 ×\times $1.80
= $5.40
Cost of 2 muffins = $11.40 - $5.40
= $6.00
Cost of 1 muffin = $6.00 ÷\div 2
= $3.00
Cost of 4 muffins and 1 cookie = 4 ×\times $3.00 + $1.80
= $12.00 + $1.80
= $13.80

∴\therefore 4 muffins and 1 cookie would cost $13.80

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
At a bakery, Marcus bought 2 muffins and 3 cookies for \$11.40. Each cookie costs \$1.80. What would 4 muffins and 1 cookie cost?
workedSolution
| | | | ---------------------- | ---------------------- | |Cost of 3 cookies | \= 3 $\times$ \$1.80| | | = \$5.40| |Cost of 2 muffins | \= \$11.40 - \$5.40| | | = \$6.00| |Cost of 1 muffin | \= \$6.00 $\div$ 2| | | = \$3.00| |Cost of 4 muffins and 1 cookie | \= 4 $\times$ \$3.00 + \$1.80| | | = \$12.00 + \$1.80| | | \= \$13.80 |

$\therefore$ 4 muffins and 1 cookie would cost \$13.80
correctAnswer
\$13.80

Answers

Is Correct?Answer
x

$12.60

✓

$13.80

x

$14.40

x

$15.00

Variant 2

DifficultyLevel

462

Question

Sofia purchased 4 pencils and 2 erasers for $7.20. Each eraser costs $1.20.

What would 7 pencils and 3 erasers cost?

Worked Solution
Cost of 2 erasers = 2 ×\times $1.20
= $2.40
Cost of 4 pencils = $7.20 - $2.40
= $4.80
Cost of 1 pencil = $4.80 ÷\div 4
= $1.20
Cost of 7 pencils and 3 erasers = 7 ×\times $1.20 + 3 ×\times $1.20
= $8.40 + $3.60
= $12.00

∴\therefore 7 pencils and 3 erasers would cost $12.00

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Sofia purchased 4 pencils and 2 erasers for \$7.20. Each eraser costs \$1.20. What would 7 pencils and 3 erasers cost?
workedSolution
| | | | ---------------------- | ---------------------- | |Cost of 2 erasers | \= 2 $\times$ \$1.20| | | = \$2.40| |Cost of 4 pencils | \= \$7.20 - \$2.40| | | = \$4.80| |Cost of 1 pencil | \= \$4.80 $\div$ 4| | | = \$1.20| |Cost of 7 pencils and 3 erasers | \= 7 $\times$ \$1.20 + 3 $\times$ \$1.20| | | = \$8.40 + \$3.60| | | \= {{{correctAnswer}}} |

$\therefore$ 7 pencils and 3 erasers would cost {{{correctAnswer}}}
correctAnswer
\$12.00

Answers

Is Correct?Answer
x

$10.80

x

$11.40

✓

$12.00

x

$12.60

Variant 3

DifficultyLevel

464

Question

At a sports store, Chen bought 4 tennis balls and 3 wristbands for $18.50. Each wristband costs $2.50.

What would 6 tennis balls and 2 wristbands cost?

Worked Solution
Cost of 3 wristbands = 3 ×\times $2.50
= $7.50
Cost of 4 tennis balls = $18.50 - $7.50
= $11.00
Cost of 1 tennis ball = $11.00 ÷\div 4
= $2.75
Cost of 6 tennis balls and 2 wristbands = 6 ×\times $2.75 + 2 ×\times $2.50
= $16.50 + $5.00
= $21.50

∴\therefore 6 tennis balls and 2 wristbands would cost $21.50

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
At a sports store, Chen bought 4 tennis balls and 3 wristbands for \$18.50. Each wristband costs \$2.50. What would 6 tennis balls and 2 wristbands cost?
workedSolution
| | | | ---------------------- | ---------------------- | |Cost of 3 wristbands | \= 3 $\times$ \$2.50| | | = \$7.50| |Cost of 4 tennis balls | \= \$18.50 - \$7.50| | | = \$11.00| |Cost of 1 tennis ball | \= \$11.00 $\div$ 4| | | = \$2.75| |Cost of 6 tennis balls and 2 wristbands | \= 6 $\times$ \$2.75 + 2 $\times$ \$2.50| | | = \$16.50 + \$5.00| | | \= \$21.50 |

$\therefore$ 6 tennis balls and 2 wristbands would cost \$21.50
correctAnswer
\$21.50

Answers

Is Correct?Answer
x

$19.50

x

$20.50

✓

$21.50

x

$22.50

Tags

  • staging_suejones