Cisco Written Test Qs.(Quantitative Aptitude) :: Alligation or Mixture - Discussion

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Explanation:

Solution:

Cost of 3 gms of coffee by putting in 2 parts of a 33p. a gm. grade to 1 part of a 24p. a gm = 90 paisa

Cost of 1 gms of coffee by putting in 2 parts of a 33p. a gm. grade to 1 part of a 24p. a gm = 30 paisa



Cost of 3 gms of the mixture changed to 1 part of the 33p. a gm. to 2 parts of the less expensive grade = 81 paisa

Cost of 1 gms of mixture changed to 1 part of the 33p. a gm. to 2 parts of the less expensive grade = 27 paisa



Diff in cost for 1 gm mixture = 3 paisa

Diff in cost for 100 gm mixture = 300 paisa = 3 Rs.