Question

Fresh grapes contains 90% water, and dry grapes contains 85% matter. To get 25 kgs of dry grapes who many kgs of fresh grapes have to be processed?

Answer 1

Answer:

To get 25 kgs of dry grapes 2.5 kgs of fresh grapes have to be processed

Step-by-step explanation:

We are given that 90% of the weight of the fresh grapes is water,

So 10% is not water.

Totally water less grapes. = $10\%  \times  20kg =\frac{10}{100} \times 20 = 2kg$

"Dried" grapes contain 20% water.

So 80% of the weight of "dried" grapes is not water.

So,ATQ

$80\% \times \text{dry grapes weight} = 2kg$

$\text{dry grapes weight} = \frac{200}{80}kg$

$\text{dry grapes weight} =2.5 kg$

Hence To get 25 kgs of dry grapes 2.5 kgs of fresh grapes have to be processed