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Gurome's Quant Blog Series - Fractions, Decimals and Percentages A10


If you had any difficulty in getting the correct solution to the last question posted here, please go through the explanation below:

 

Explanation:

It is given that 'a' kg of cherries contain 99% water. So, the weight of dry cherries without water is (a - a × 0.99) kg = 0.01a kg

Let the weight of cherries after 15 days be x kg.

Now after 15 days, some water evaporated but dry weight will remain the same.

Since the cherries now contain 98% water, (100 - 98) % or 2% will form the dry weight.

So, 0.01a = 2x/100 or x = a/2

Therefore, the weight of cherries after 15 days is a/2 kg.

The correct answer is (B).

Difficulty Level: 500

 

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Posted by kalyani at Aug 13, 2010 1:17:57 PM
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