50076

Question

{{{question}}}

Worked Solution

{{{workedSolution}}}

Variant 0

DifficultyLevel

545

Question

James weighed 80 kg when he was 18 years old.

On his 21st birthday, James weighs 5% more than when he was 18.

How much does he weigh now?

Worked Solution


80 + (80 × 5%)	= 80 + 4
	= 84 kg

Question Type

Multiple Choice (One Answer)

Variables

Variable name	Variable value
question	James weighed 80 kg when he was 18 years old. On his 21st birthday, James weighs 5% more than when he was 18. How much does he weigh now?
workedSolution	\| \| \| \| -------------- \| -------- \| \| 80 + (80 × 5%) \| = 80 + 4 \| \| \| = {{correctAnswer}} \|
correctAnswer	84 kg

Answers

Is Correct?	Answer
x	76 kg
✓	84 kg
x	85 kg
x	120 kg

Variant 1

DifficultyLevel

544

Question

Kerry's puppy weighed 15 kg when he was 6 months old.

On his 1st birthday, the puppy weighs 45% more than when he was 6 months old.

How much does the puppy weigh now?

Worked Solution


15 + (15 × 45%)	= 15 + 6.75
	= 21.75 kg

Question Type

Multiple Choice (One Answer)

Variables

Variable name	Variable value
question	Kerry's puppy weighed 15 kg when he was 6 months old. On his 1st birthday, the puppy weighs 45% more than when he was 6 months old. How much does the puppy weigh now?
workedSolution	\| \| \| \| -------------- \| -------- \| \|15 + (15 × 45%) \| = 15 + 6.75 \| \| \| = {{correctAnswer}} \|
correctAnswer	21.75 kg

Answers

Is Correct?	Answer
x	60 kg
x	23.25 kg
✓	21.75 kg
x	6.75 kg

Variant 2

DifficultyLevel

563

Question

A male humpback whale is 4 metres long when it is born.

It increases in length by 205% by the time it is an adult.

How long is an adult humpback whale?

Worked Solution


4 + (4 × 205%)	= 4 + 8.2
	= 12.2 metres

Question Type

Multiple Choice (One Answer)

Variables

Variable name	Variable value
question	A male humpback whale is 4 metres long when it is born. It increases in length by 205% by the time it is an adult. How long is an adult humpback whale?
workedSolution	\| \| \| \| -------------- \| -------- \| \| 4 + (4 × 205%) \| = 4 + 8.2 \| \| \| = {{correctAnswer}} \|
correctAnswer	12.2 metres

Answers

Is Correct?	Answer
x	8 metres
x	8.1 metres
x	10 metres
✓	12.2 metres

Variant 3

DifficultyLevel

542

Question

A pot weighed 12 kg when empty.

When filled with garden soil and plants, the pot weighs 35% more than when empty.

How much does the filled pot weigh?

Worked Solution


12 + (12 × 35%)	= 12 + 4.2
	= 16.2 kilograms

Question Type

Multiple Choice (One Answer)

Variables

Variable name	Variable value
question	A pot weighed 12 kg when empty. When filled with garden soil and plants, the pot weighs 35% more than when empty. How much does the filled pot weigh?
workedSolution	\| \| \| \| -------------- \| -------- \| \| 12 + (12 × 35%) \| = 12 + 4.2 \| \| \| = {{correctAnswer}} \|
correctAnswer	16.2 kilograms

Answers

Is Correct?	Answer
x	4.2 kilograms
✓	16.2 kilograms
x	18 kilograms
x	47 kilograms

Variant 4

DifficultyLevel

561

Question

A seedling is 4 centimetres tall after 2 weeks.

After 5 weeks it has increased in height by 175%.

How tall is the seedling now?

Worked Solution


4 + (4 × 175%)	= 4 + 7
	= 11 centimetres

Question Type

Multiple Choice (One Answer)

Variables

Variable name	Variable value
question	A seedling is 4 centimetres tall after 2 weeks. After 5 weeks it has increased in height by 175%. How tall is the seedling now?
workedSolution	\| \| \| \| -------------- \| -------- \| \| 4 + (4 × 175%) \| = 4 + 7 \| \| \| = {{correctAnswer}} \|
correctAnswer	11 centimetres

Answers

Is Correct?	Answer
✓	11 centimetres
x	8 centimetres
x	7 centimetres
x	3 centimetres

Variant 5

DifficultyLevel

552

Question

A tree was 15 metres tall two years ago.

It was measured this year and its height had increased by 64%.

How tall is the tree now?

Worked Solution


15 + (15 × 64%)	= 15 + 9.6
	= 24.6 metres

Question Type

Multiple Choice (One Answer)

Variables

Variable name	Variable value
question	A tree was 15 metres tall two years ago. It was measured this year and its height had increased by 64%. How tall is the tree now?
workedSolution	\| \| \| \| -------------- \| -------- \| \| 15 + (15 × 64%) \| = 15 + 9.6 \| \| \| = {{correctAnswer}} \|
correctAnswer	24.6 metres

Answers

Is Correct?	Answer
x	9.6 metres
x	19.2 metres
✓	24.6 metres
x	79 metres

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