Page 5 - Digi Notes : Maths - 11.03.2016
P. 5
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The Alligation Rule:

The rule says that “The ratio in which two ingredients; having

relative values a1 and a2; which are mixed to produce a

mixture (real/hypothetical) having relative value aav; is given

by:
























Ensure to subtract in the order in which it is shown here.

Don’t change the order of subtraction; otherwise the final

answer of the question would not be correct.


Practice Time



1. In what proportion must rice at Rs.3.10 per kg be mixed

with rice at Rs.3.60 per kg, so that the mixture is worth

Rs.3.25 per kg?

Rice 1 Rice 2

310 360

325

35 : 15

Required Ratio  3 : 7



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