If a, b, c, d, e, f are in A.P., then e – c is equal to:
If a, b, c, d, e, f are in A.P., then e – c is equal to: Correct Answer 2 (d - c)
Let x be the common difference of the A.P.
a, b, c, d, e, f.
∴ e = a + (5 - 1)x
⇒ e = a + 4x ----(1)
d = a + 3x
c = a + 2x
⇒ (e – c) = 2x
⇒ (d – c) = x
⇒ (e – c) = 2(d – c)
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Feb 20, 2025