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12, 16, 20, 24, ...... Find 25th term of this A.P. - Algebra

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Sum

12, 16, 20, 24, ...... Find 25th term of this A.P.

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Solution

The given A.P. is 12, 16, 20, 24, ......

Here, a = 12, d = 16 – 12 = 4

Since tn = a + (n – 1)d

t25 = 12 + (25 – 1)(4)

= 12 + 24(4)

= 12 + 96

= 108

∴ 25th term of the given A.P. is 108.

Concept: General Term of an Arithmetic Progression
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