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In an Arithmetic Progression, if A1 = 28, d = -4, n = 7, then aa is ______?
  1. 5
  2. 3
  3. 4
  4. None of these
Explanation

Given:

A1 = 28 (first term)

d = -4 (common difference)

n = 7 (number of terms)

To find the nth term (an), use the formula:

an = a + (n-1)d

an = 28 + (7-1)(-4)

= 28 + 6(-4)

= 28 - 24

= 4

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