Number, NAPX-H4-NC23 SA

Question

It takes 5 clowns 6 hours to blow up 600 balloons.

At the same rate, how many hours should it take for 4 clowns to blow up 240 balloons?

Worked Solution

5 clowns × 6 hours ⇒ 600 balloons

30 "clown" hours ⇒ 600 balloons

∴\therefore Balloons blown up by 1 clown in 1 hour
= 600 ÷\div 30
= 20

⇒ 4 clowns blow up 80 balloons per hour

∴\therefore Time to blow up 240
= 240 ÷\div 80
= {{{correctAnswer0}}} {{{suffix0}}}

Variant 0

DifficultyLevel

692

Question

It takes 5 clowns 6 hours to blow up 600 balloons.

At the same rate, how many hours should it take for 4 clowns to blow up 240 balloons?

Worked Solution

5 clowns × 6 hours ⇒ 600 balloons

30 "clown" hours ⇒ 600 balloons

∴\therefore Balloons blown up by 1 clown in 1 hour
= 600 ÷\div 30
= 20

⇒ 4 clowns blow up 80 balloons per hour

∴\therefore Time to blow up 240
= 240 ÷\div 80
= 3 hours

Question Type

Answer Box

Variables

Variable nameVariable value
correctAnswer0
3
prefix0
suffix0
hours

Answers

Specify one or more 'ANSWER' block(s) as exampled below.
Note: correctAnswer is required, the rest are optional. ("correctAnswer" is what the student would need to type in to the box to get the answer correct.)

For example:
correctAnswer: 123.40

And optionally, specify the following, but only if you need something different to the defaults: 'width' defaults to 5 if not present, and valid values are 3 to 10; 'prefix' and 'suffix' default to nothing if not present.
prefix: $
suffix: mm$^2$
width: 5

correctAnswerNcorrectAnswerValueAnswer
correctAnswer03

hours

Tags