Divide 20 into two parts such that their product is maximum. The parts are:
Divide 20 into two parts such that their product is maximum. The parts are:
- A. 15 and 5
- B. 12 and 8
- C. 10 and 10
- D. 16 and 4
Answer: C) 10 and 10
Explanation: Let parts be x and 20-x. Product P = x(20-x) = 20x - x². P' = 20 - 2x = 0 gives x = 10. The parts are 10 and 10.
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