If the common difference of an A.P. is 5.

If the common difference of an A.P. is 5, then a₁₈ – a₁₃ is
(a) 5
(b) 20
(c) 25
(d) 30

Solution:

In an A.P., if a₁₈ – a₁₄ = 32 then the common difference is
(a) 8
(b) -8
(c) -4
(d) 4

Solution:

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