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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.
ARs.90
BRs.1.00
CRs.3.00
DRs.8.00
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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.
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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.
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