Multiple choice

Which term of the A.P. 24, 21, 18, ................... is the first negative term?

  1. 8th

  2. 9th

  3. 10th

  4. 12th
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

2: (c) 10th [Soln: an = a + (n - 1)× d where d = -3, Let an = 0⇒ 0 = 24 + (n - 1) × -3⇒ 0 = 24 -3n + 3⇒ 3n = 27⇒ n = 9⇒ 10th term will be negative (-ve).

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