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The first term a of an A.P is equal to twice the common difference d….

The first term a of an A.P is equal to twice the
common difference d. Find, in terms of d, the 5th
term of the A.P.

A.
4d
B.
5d
C.
6d
D.
a + 5d
E.
2a + 4d

Correct Answer: Option C

Explanation

T_n = a + (n – 1)d; AP; a = 2d; T_n = 2d + (n – 1)d
T₅ = 2d + (5 – 1)d = 2d + 4d = 6d