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Ratio Resolution IV (Posted on 2016-10-20) Difficulty: 3 of 5
Alloy 1 contains copper and zinc in the ratio N-1:N and Alloy 2 contains copper and zinc in the ratio N:N+1, where N is a positive integer > 1.

(i) Alloy 1 and Alloy 2 are melted together in the ratio P:Q, so that the ratio of copper and zinc in the resulting alloy is P:Q.

(ii) Alloy 1 and Alloy 2 are melted together in the ratio P:Q, so that the ratio of copper and zinc in the resulting alloy is Q:P.

In each of the cases (i) and (ii) - determine p:q in terms of N.

*** Each of p and q is a positive integer.

No Solution Yet Submitted by K Sengupta    
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Comments: ( Back to comment list | You must be logged in to post comments.)
Some Thoughts '[p(n-1)+qn] : [pn + q(n-1)]' | Comment 2 of 3 |
(In reply to Solution? by Jer)

Is that the same as in the puzzle? I thought it was something like:

[p(n-1)+qn] : [pn + q(n+1)], though I've probably just missed something.


  Posted by broll on 2016-10-21 10:51:39
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