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What is the maximum value of 3 x+4 x+5 ?

Options

  1. A5
  2. B7
  3. C10
  4. D12

Correct answer

C. 10

Step-by-step solution

Since - 3^2+4^2 3 x+4 x 3^2+4^2 x aligned & -5+5 3 x+4 x+5 5+5 x & 0 3 x+4 x+5 10 x aligned Maximum value of 3 x+4 x+5=10

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