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COMEDK2014MathematicsBasics of Mathematics

Ram obtained 60 and 85 in first two unit tests. The minimum marks he should get in the third test to have an average of atleast 55 marks is

Options

  1. Ax 20
  2. Bx 20
  3. Cx>20
  4. Dx < 20

Correct answer

A. x 20

Step-by-step solution

To get an average of atleast 55 marks, We have, 60+85+x 3 55 145+x 165 x 165-145 x 20

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