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Direct and Inverse Proportions | Exercise 13.2

Question 15

Q8)  A factory requires 42 machines to produce a given number of articles in 63 days. How many machines would be required to produce the same number of articles in 54 days?

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Solution:

Let the number of the machine be x.

Here the number of machines and the number of days are in inverse proportion.

\therefore\frac{63}{5}=\frac{x}{42}

\Rightarrow\ x=\frac{63\times42}{54}

\Rightarrow\ x=49

49 machines would be required.

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Our top 5% students will be awarded a special scholarship to Lido.

subject-cta

Question 15

Q8)  A factory requires 42 machines to produce a given number of articles in 63 days. How many machines would be required to produce the same number of articles in 54 days?

Looking to do well in your science exam ? Learn from an expert tutor. Book a free class!

Solution:

Let the number of the machine be x.

Here the number of machines and the number of days are in inverse proportion.

\therefore\frac{63}{5}=\frac{x}{42}

\Rightarrow\ x=\frac{63\times42}{54}

\Rightarrow\ x=49

49 machines would be required.

Our top 5% students will be awarded a special scholarship to Lido.

subject-cta
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