puzzle

umabala · 10-06-06, 01:03 AM

6 A coffee seller has two types of coffee Brand A costing 5 bits per pound and Brand B costing 3 bits per pound. he mixes two brands to get a 40 pound mixture. he sold this at 6 bits per pound. the seller gets a profit of 33 1/2 percent. how much he has used Brand A in the mixture?

WISDOM · 05-07-06, 05:49 AM

arre! u didn't give the ratio of mixtures!

total sp = 40 * 6 = 240 bits

cp = 180

5x + 3 y = 180

one possible solution is x(brand A) = 30 pounds

and brand B = 10 pounds

another is brand a = 24 pounds and brnd B = 20 pounds

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10-06-06, 01:03 AM	#1 (permalink)
umabala Junior Member Join Date: Jun 2006 Location: India Posts: 7 Thanks: 0 Thanked 0 Times in 0 Posts Thanks: 0 Thanked 0 Times in 0 Posts Rep Power: 3	6 A coffee seller has two types of coffee Brand A costing 5 bits per pound and Brand B costing 3 bits per pound. he mixes two brands to get a 40 pound mixture. he sold this at 6 bits per pound. the seller gets a profit of 33 1/2 percent. how much he has used Brand A in the mixture?

05-07-06, 05:49 AM	#2 (permalink)
WISDOM (e)x-member Join Date: Jul 2006 Location: India Posts: 776 Thanks: 29 Thanked 28 Times in 24 Posts Thanks: 29 Thanked 28 Times in 24 Posts Rep Power: 11	arre! u didn't give the ratio of mixtures! total sp = 40 * 6 = 240 bits cp = 180 5x + 3 y = 180 one possible solution is x(brand A) = 30 pounds and brand B = 10 pounds another is brand a = 24 pounds and brnd B = 20 pounds

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