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The ratio of the volumes in water an glycerin in 320 cc of a mixture is 1 : 3. The quantity of water (in cc) that should be added to the mixture so that the new ratio of the volumes of water and glycerin becomes 2 : 3 is1). 552). 803). 62.54). 64 |
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Answer» ⇒ Amount of water in previous MIXTURE = 320 × (1/4) = 80 ⇒ After ADDING x cc amount of water will be (80 + x) ⇒ Amount of glycerin = 320 × (3/4) = 240 ⇒ New ratio = (80 + x)/240 ⇒ (80 + x)/240 = 2/3 ⇒ (80 + x) = 160 ∴ x = 80 |
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