Question

7 ലിറ്റർ വെള്ളവും,3 ലിറ്റർ ആസിഡും ചേർന്ന ദ്രാവകത്തിൽ, വീണ്ടും ഒഴിക്കുന്ന ആസിഡിൻ്റ്റെ അളവും, ദ്രാവകത്തിലെ ആസിഡിൻ്റെ ശതമാനത്തിൽ ഉണ്ടാകുന്ന മാറ്റവും തമ്മിലുള്ള ബന്ധം.​

Answer 1

The percentage of acid that has to be added will be $\frac{3+x}{10+x} .100$

• A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The proportion therefore refers to a component per hundred. Per 100 is what the word percent means. The word "percent" is used to symbolise it.
• We must divide the value by the entire value to find the percentage, and then multiply the resulting number by 100. The original number is subtracted from the new number, divided by the original number, then multiplied by 100 to get the % increase.

Here, according to the given information, we are given that,

The amount of acid in the solution is 3 litres and that of water is 7 litres.

Let the amount of acid that has to be added be x.

Then, the total quantity of solution becomes,

(7 + 3 + x) = 10 + x.

Then, the percentage of acid that has to be added will be,

$\frac{3+x}{10+x} .100$

Hence, the percentage of acid that has to be added will be $\frac{3+x}{10+x} .100$

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