InterviewSolution
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1). 5/42). 5/23). 3/44). 4/3 |
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Answer» ⇒ LET x LITERS of pure ALCOHOL added to mixture ⇒ Quantity of alcohol in 10 liters of mixture = 15% of 10 = 1.5 litre ⇒ (10 + x) x 25% = (1.5 + x) ⇒ 2.5 + 0.25x = 1.5 + x ⇒ 1 = 0.75x ∴ x = 4/3 |
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