Allied & ICAR Exam Bank • ALLIED_1684 MCQ • 2 Marks

Section 8: General Aptitude

Quantitative Aptitude

Subtopic: Numerical Computation

Question Statement:

If the 5th term of an arithmetic progression is 19 and the 11th term is 43, the 20th term of the progression is:

Options:

  • (A) 79
  • (B) 75
  • (C) 83
  • (D) 71

Answer Key:

A

Step-by-Step Solution & Explanation

$a + 4d = 19$, $a + 10d = 43 \implies 6d = 24 \implies d = 4$. $a = 19 - 16 = 3$. $T_{20} = 3 + 19(4) = 3 + 76 = 79$.
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