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NTA Abhyas JEE Main2020MathematicsSequences and SeriesPractice

If a , b , c , d , e , f are in arithmetic progression. Then e − c is equal to

Options

  1. A2 c − a
  2. B2 d − c
  3. C2 f − d
  4. Dd − c

Correct answer

B. 2 d − c

Step-by-step solution

a, b, c, d, e, f are in A.P. let common difference = D ∴ e - c = a + 4 D - a + 2 D = 2 D = 2 ( d - c )

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