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The ratio of milk to water in a 27-litre mixture is 7 : 2. Find the quantity of water (in litres) that should be added to the mixture to ma…

358753Medium DSSSB TGT Computer Science 0 replies 0 views
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The ratio of milk to water in a 27-litre mixture is 7 : 2. Find the quantity of water (in litres) that should be added to the mixture to make the ratio 1 : 1.
  • A15
  • B22
  • C17
  • D20
Correct answer: A

Explanation

The mixture has 21 L milk and 6 L water. For the ratio 1 : 1 the water must be 21 L, so 21 – 6 = 15 L of water is added.
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