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If a and b are arbitrary positive real numbers, then the least possible value of 6 a 5 b + 10 b 3 a is

Options

  1. A4
  2. B6 5
  3. C10 3
  4. D68 15

Correct answer

A. 4

Step-by-step solution

Hint: 6 a 5 b + 10 b 3 a 2 6 a 5 b 10 b 3 a , 6 a 5 b + 10 b 3 a 2 2 4

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