What will be the ratio? If zinc is 9%

One alloy which contains 90% of copper and 10% of zince is mixed with another alloy containing 96% of copper and 4% of zinc. The ratio in which they are mixed so that the mixture contains 9% of zince is

  1. 1:5
  2. 5:1
  3. 1:4
  4. 4:1
Monis Rasool Professor Asked on 14th November 2015 in Maths.
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1 Answer(s)

Answer: (2) 5: 1

Anurag Mishra Professor Answered on 18th November 2015.
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