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Solution X is percent alcohol by volume, and solution Y is 30 percent alcohol by volume. How many milliliters of solution Y must be added to 200 milliliters of solution X to create a solution that is 25 percent alcohol by volume?

Solution X is percent alcohol by volume, and solution Y is 30 percent alcohol by volume. How many milliliters of solution Y must be added to 200 milliliters of solution X to create a solution that is 25 percent alcohol by volume? Correct Answer 600

ধরি P milliliters y মেশাতে হবে। ∴ 10% of 200 + 30% of p = 25% of (200 + p) ⇒10100×200 + 30100×p = 25100×200 + p ⇒ 2000 + 30 p = 5000 + 25 p ⇒ 30p - 25p = 5000 - 2000 ⇒p = 30005 ∴ p = 600

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