The cost and revenue functions of a product are given by C ( x ) = 20 x + 4000 and R ( x…
Mathematics · Class 11 · CBSE — Linear Inequalities
The cost and revenue functions of a product are given by C(x) = 20x + 4000 and R(x) = 60x + 2000, respectively, where x is the number of items produced and sold. How many items must be sold to realise some profit?
- less than 40
- more than 50
- less than 50
- exactly 50
Answer
(B) more than 50
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