A coffee shop blends 2 kinds of coffee, putting in 2 parts of a 33p. a gm. grade to 1 part of a 24p. a gm. If the mixture is changed to 1 part of the 33p. a gm. to 2 parts of the less expensive grade.  How much will the shop save in blending 100 gms?A. Rs.9.00B. Rs.1.00C. Rs.3.00D. Rs.8.00

C

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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 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.

varun

  • Nov 26th, 2016
 

C. Rs.3.00

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