Reenu types 540 words during half an hour.

Question:

Reenu types 540 words during half an hour. How many words would she type in 8 minutes?

Solution:

Let Reenu type x words in 8 minutes.

No. of words 540 x
Time taken (in min) 30 8

Clearly, less number of words will be typed in less time. 

So, it is a case of direct proportion.

Now, $\frac{540}{30}=\frac{x}{8}$

$\Rightarrow x=\frac{540 \times 8}{30}$

v

 

Therefore, Reenu will type 144 words in 8 minutes.

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