30055

Question

{{{question}}}

Worked Solution

{{{workedSolution}}}

Variant 0

DifficultyLevel

596

Question

The cruising speed of a kangaroo is 720 metres per minute.

What is this speed in metres per second?

Worked Solution
Speed = 72060\dfrac{720}{60}
= 12 m/sec

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
The cruising speed of a kangaroo is 720 metres per minute. What is this speed in metres per second?
workedSolution
||| |-|-| |Speed|= $\dfrac{720}{60}$| ||| ||= {{{correctAnswer}}}|
correctAnswer
12 m/sec

Answers

Is Correct?Answer
✓

12 m/sec

x

72 m/sec

x

120 m/sec

x

660 m/sec

Variant 1

DifficultyLevel

605

Question

The top speed of a wildebeest is 1440 metres per minute.

What is this speed in metres per second?

Worked Solution
Speed = 144060\dfrac{1440}{60}
= 1446\dfrac{144}{6}
= 24 m/sec

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
The top speed of a wildebeest is 1440 metres per minute. What is this speed in metres per second?
workedSolution
||| |-|-| |Speed|= $\dfrac{1440}{60}$| ||| ||= $\dfrac{144}{6}$| ||= {{{correctAnswer}}}|
correctAnswer
24 m/sec

Answers

Is Correct?Answer
✓

24 m/sec

x

36 m/sec

x

144 m/sec

x

240 m/sec

Variant 2

DifficultyLevel

602

Question

The top speed of a leatherback sea turtle is 1800 metres per minute.

What is this speed in metres per second?

Worked Solution
Speed = 180060\dfrac{1800}{60}
= 1806\dfrac{180}{6}
= 30 m/sec

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
The top speed of a leatherback sea turtle is 1800 metres per minute. What is this speed in metres per second?
workedSolution
||| |-|-| |Speed|= $\dfrac{1800}{60}$| ||| ||= $\dfrac{180}{6}$| ||= {{{correctAnswer}}}|
correctAnswer
30 m/sec

Answers

Is Correct?Answer
✓

30 m/sec

x

65 m/sec

x

180 m/sec

x

300 m/sec

Variant 3

DifficultyLevel

622

Question

The top speed of a peregrine falcon is 360 km/hr.

What is this top speed in metres per second?

Worked Solution

1 hour = 60 minutes = 60 ×\times 60 seconds

360 km = 360 000 metres
Speed = 360 00060×60\dfrac{360\ 000}{60 \times 60}
= 360036\dfrac{3600}{36}
= 100 m/sec

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
The top speed of a peregrine falcon is 360 km/hr. What is this top speed in metres per second?
workedSolution
1 hour = 60 minutes = 60 $\times$ 60 seconds 360 km = 360 000 metres
||| |-|-| |Speed|= $\dfrac{360\ 000}{60 \times 60}$| ||| ||= $\dfrac{3600}{36}$| ||= {{{correctAnswer}}}|
correctAnswer
100 m/sec

Answers

Is Correct?Answer
x

10 m/sec

✓

100 m/sec

x

1000 m/sec

x

10 000 m/sec

Variant 4

DifficultyLevel

604

Question

A polar bear has a top speed of 420 metres per minute.

What is this top speed in metres per second?

Worked Solution

60 seconds = 1 minute
Speed = 42060\dfrac{420}{60}
= 426\dfrac{42}{6}
= 7 m/sec

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
A polar bear has a top speed of 420 metres per minute. What is this top speed in metres per second?
workedSolution
60 seconds = 1 minute
||| |-|-| |Speed|= $\dfrac{420}{60}$| ||| ||= $\dfrac{42}{6}$| ||= {{{correctAnswer}}}|
correctAnswer
7 m/sec

Answers

Is Correct?Answer
✓

7 m/sec

x

14 m/sec

x

42 m/sec

x

70 m/sec

Variant 5

DifficultyLevel

632

Question

The top speed of an ostrich is 72 kilometres per hour.

What is this speed in metres per second?

Worked Solution

1 hour = 60 minutes = 60 ×\times 60 seconds

72 kilometres = 72 000 metres
Speed = 72 00060×60\dfrac{72\ 000}{60 \times 60}
= 7206×6\dfrac{720}{6 \times 6}
= 72036\dfrac{720}{36}
= 20 m/sec

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
question
The top speed of an ostrich is 72 kilometres per hour. What is this speed in metres per second?
workedSolution
1 hour = 60 minutes = 60 $\times$ 60 seconds 72 kilometres = 72 000 metres
||| |-|-| |Speed|= $\dfrac{72\ 000}{60 \times 60}$| ||| ||= $\dfrac{720}{6 \times 6}$| ||= $\dfrac{720}{36}$| ||= {{{correctAnswer}}}|
correctAnswer
20 m/sec

Answers

Is Correct?Answer
✓

20 m/sec

x

72 m/sec

x

120 m/sec

x

200 m/sec

Tags