Number, NAPX-G4-CA18

Question

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Worked Solution

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Variant 0

DifficultyLevel

626

Question

Kate studied 2 hours and 24 minutes for her History exam.

Brianna studied 15% longer than Kate for the same exam.

Approximately how long did Brianna study for the History exam?

Worked Solution

Kate's study time = 2 ×\times 60 + 24 = 144 minutes
Brianna's study time = 144 + 15100\dfrac{15}{100} × 144
= 144 + 21.6
= 165.6 minutes
≈\approx 2 hours 46 minutes

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Kate studied 2 hours and 24 minutes for her History exam. Brianna studied 15% longer than Kate for the same exam. Approximately how long did Brianna study for the History exam?
workedSolution
Kate's study time = 2 $\times$ 60 + 24 = 144 minutes
| | | | --------------------- | -------------- | | Brianna's study time | \= 144 + $\dfrac{15}{100}$ × 144 | | | \= 144 + 21.6 | | | \= 165.6 minutes| | | $\approx$ {{{correctAnswer}}} |
correctAnswer
2 hours 46 minutes

Answers

Is Correct?Answer
✓

2 hours 46 minutes

x

2 hours and 55 minutes

x

3 hours and 5 minutes

x

4 hours

Variant 1

DifficultyLevel

626

Question

Elsie studied 2 hours and 24 minutes for her Hospitality exam.

Isla studied 20% longer than Elsie for the same exam.

Approximately how long did Isla study for the Hospitality exam?

Worked Solution

Elsie's study time = 2 ×\times 60 + 24 = 144 minutes
Isla's study time = 144 + 20100\dfrac{20}{100} × 144
= 144 + 28.8
= 172.8 minutes
≈\approx 2 hours 53 minutes

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Elsie studied 2 hours and 24 minutes for her Hospitality exam. Isla studied 20% longer than Elsie for the same exam. Approximately how long did Isla study for the Hospitality exam?
workedSolution
Elsie's study time = 2 $\times$ 60 + 24 = 144 minutes
| | | | --------------------- | -------------- | | Isla's study time | \= 144 + $\dfrac{20}{100}$ × 144 | | | \= 144 + 28.8 | | | \= 172.8 minutes| | | $\approx$ {{{correctAnswer}}} |
correctAnswer
2 hours 53 minutes

Answers

Is Correct?Answer
x

2 hours 44 minutes

✓

2 hours 53 minutes

x

3 hours 8 minutes

x

4 hours 44 minutes

Variant 2

DifficultyLevel

626

Question

Judd studied 3 hours and 10 minutes for his Physics exam.

Jerry studied 5% longer than Judd for the same exam.

Approximately how long did Jerry study for the Physics exam?

Worked Solution

Judd's study time = 3 ×\times 60 + 10 = 190 minutes
Jerry's study time = 190 + 5100\dfrac{5}{100} × 190
= 190 + 9.5
= 199.5 minutes
≈\approx 3 hours 20 minutes

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Judd studied 3 hours and 10 minutes for his Physics exam. Jerry studied 5% longer than Judd for the same exam. Approximately how long did Jerry study for the Physics exam?
workedSolution
Judd's study time = 3 $\times$ 60 + 10 = 190 minutes
| | | | --------------------- | -------------- | | Jerry's study time | \= 190 + $\dfrac{5}{100}$ × 190 | | | \= 190 + 9.5 | | | \= 199.5 minutes| | | $\approx$ {{{correctAnswer}}} |
correctAnswer
3 hours 20 minutes

Answers

Is Correct?Answer
x

3 hours

x

3 hours 15 minutes

✓

3 hours 20 minutes

x

4 hours 45 minutes

Variant 3

DifficultyLevel

626

Question

Curtis studied 1 hour and 56 minutes for his Japanese exam.

Carol studied 30% longer than Curtis for the same exam.

Approximately how long did Carol study for the Japanese exam?

Worked Solution

Curtis's study time = 1 ×\times 60 + 56 = 116 minutes
Carol's study time = 116 + 30100\dfrac{30}{100} × 116
= 116 + 34.8
= 150.8 minutes
≈\approx 2 hours 31 minutes

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Curtis studied 1 hour and 56 minutes for his Japanese exam. Carol studied 30% longer than Curtis for the same exam. Approximately how long did Carol study for the Japanese exam?
workedSolution
Curtis's study time = 1 $\times$ 60 + 56 = 116 minutes
| | | | --------------------- | -------------- | | Carol's study time | \= 116 + $\dfrac{30}{100}$ × 116 | | | \= 116 + 34.8| | | \= 150.8 minutes| | | $\approx$ {{{correctAnswer}}} |
correctAnswer
2 hours 31 minutes

Answers

Is Correct?Answer
x

1 hours 21 minutes

x

2 hours 13 minutes

x

2 hours 26 minutes

✓

2 hours 31 minutes

Variant 4

DifficultyLevel

626

Question

Lewis studied 2 hour and 48 minutes for his Biology exam.

Leanne studied 18% longer than Lewis for the same exam.

Approximately how long did Leanne study for the Biology exam?

Worked Solution

Lewis's study time = 2 ×\times 60 + 48 = 168 minutes
Leanne's study time = 168 + 18100\dfrac{18}{100} × 168
= 168 + 30.24
= 198.24 minutes
≈\approx 3 hours 18 minutes

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Lewis studied 2 hour and 48 minutes for his Biology exam. Leanne studied 18% longer than Lewis for the same exam. Approximately how long did Leanne study for the Biology exam?
workedSolution
Lewis's study time = 2 $\times$ 60 + 48 = 168 minutes
| | | | --------------------- | -------------- | | Leanne's study time | \= 168 + $\dfrac{18}{100}$ × 168 | | | \= 168 + 30.24| | | \= 198.24 minutes| | | $\approx$ {{{correctAnswer}}} |
correctAnswer
3 hours 18 minutes

Answers

Is Correct?Answer
x

3 hours 6 minutes

x

3 hours 10 minutes

✓

3 hours 18 minutes

x

3 hours 38 minutes

Variant 5

DifficultyLevel

636

Question

Ken studied 4 hour and 5 minutes for his Mathematics exam.

Kylie studied for 10% less time than Ken for the same exam.

Approximately how long did Kylie study for the Mathematics exam?

Worked Solution

Kens's study time = 4 ×\times 60 + 5 = 245 minutes
Kylie's study time = 245 −- 10100\dfrac{10}{100} × 245
= 245 −- 24.5
= 220.5 minutes
≈\approx 3 hours 41 minutes

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
Ken studied 4 hour and 5 minutes for his Mathematics exam. Kylie studied for 10% less time than Ken for the same exam. Approximately how long did Kylie study for the Mathematics exam?
workedSolution
Kens's study time = 4 $\times$ 60 + 5 = 245 minutes
| | | | --------------------- | -------------- | | Kylie's study time | \= 245 $-$ $\dfrac{10}{100}$ × 245 | | | \= 245 $-$ 24.5| | | \= 220.5 minutes| | | $\approx$ {{{correctAnswer}}} |
correctAnswer
3 hours 41 minutes

Answers

Is Correct?Answer
x

3 hours 36 minutes

✓

3 hours 41 minutes

x

3 hours 55 minutes

x

4 hours 30 minutes

Tags

  • ms_ca