ABC26GN1084 · Simplification

Subject: General Aptitude · Chapter: Simplification · Exam: · Marks: · Difficulty:

The value of $1+\frac{1}{4 \times 3}+\frac{1}{4 \times 3^{2}}+\frac{1}{4 \times 3^{3}}$ is
(a)$\frac{121}{108}$
(b)$\frac{3}{2}$
(c)$\frac{31}{2}$
(d)None of these
Answer
Answer (as printed): A
Explanation
Given $\exp .=\frac{4 \times 3^{3}+3^{2}+3+1}{4 \times 3^{3}}=\frac{108+9+3+1}{108}=\frac{121}{108}$.

Explanation as extracted from the printed page; notation may be imperfect.

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