In a mixture of milk and water, the proportion of water by weight was $75 %$ . If in the 60 gm mixture, 15 gm water was added, what would be the percentage of water ? (Weight in gm)

75 %

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88 %

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90 %

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None of these

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Solution

The correct option is D None of these
Weight of water in the mixture of 60g water
$= 60 \times \frac{75}{100} = 45 g$
Weight of water in the mixture of 45g water
=45 +15=60g
$∴$ Percentage of water $= \frac{60 \times 100}{75} = 80 %$

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In a mixture of milk and water, the proportion of water by weight was 75%. If in the 60 gm mixture, 15 gm water was added, what would be the percentage of water ? (Weight in gm)

The correct option is D None of theseWeight of water in the mixture of 60g water =60×75100=45g Weight of water in the mixture of 45g water =45 +15=60g ∴ Percentage of water =60×10075=80%

In a mixture of milk and water, the proportion of water by weight was $75 %$ . If in the 60 gm mixture, 15 gm water was added, what would be the percentage of water ? (Weight in gm)

The correct option is D None of these
Weight of water in the mixture of 60g water
$= 60 \times \frac{75}{100} = 45 g$
Weight of water in the mixture of 45g water
=45 +15=60g
$∴$ Percentage of water $= \frac{60 \times 100}{75} = 80 %$