Latest Wipro Aptitude Question SOLUTION: A coffee shop blends 2 kinds of coffee, grade A and grade B, by putting in 2 parts of a grade A to 1 part of grade B. If the mixture is changed to 1 part of grade A to 2 parts of g

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A coffee shop blends 2 kinds of coffee, grade A and grade B, by putting in 2 parts of a grade A to 1 part of grade B. If the mixture is changed to 1 part of grade A to 2 parts of grade B, how much will the shop save in blending 100 gms, if grade A costs 33 cents per gram and grade B costs 24 cents per gram
A. $1
B. $8
C. $9
D. $3
E. $5

Asked In Wipro (12 years ago)

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Quais  (4 years ago)

ans is D. $3
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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