Answer to Question #38755 in Discrete Mathematics for Satish

Question

1. The cost of a piece of cloth is Rs. 35. If the piece were 4 m longer and each meter costs Rs. 1 les
s, the cost would remain unchanged. How long is the piece.
2. In a group of 50 people; 35 speak Hindi, 25 speak both English and Hindi and all people speak at least one of the two languages. How many people speak only English and not Hindi? How many people speak English?
3.Which is a better investment 14% stock at 95 or 15% stock at 105?
4.There are two types of fertilizers
1Fand2F.1F consists of 10% nitrogen and 6% phosphoric acid and 2 F consists of 5% nitrogen and 10% phosphoric acid. After testing the soil conditions, a farmer finds that he atleast needs 14 kg. of nitrogen and 14 kg of phosphoric acid for the crop. If 1F costs Rs. 6 per kg. and 2F costs Rs. 5 per kg., determine how much of each type of fertilizer should be used so that nutrient requirements are met at a minimum cost.

Answer 1

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