ABC26GN1094 · Simplification
Subject: General Aptitude · Chapter: Simplification · Exam: 2007 · Marks: · Difficulty:
After measuring 120 metres of a rope, it was discovered that the measuring metre rod was 3 cm longer. The true length of the rope measured is
(a)116 m 40 cm
(b)121 m 20 cm
(c)123 m
(d)123 m 60 cm
Answer
Explanation
True length of the rope $=120 \mathrm{m}+(3 \times 120) \mathrm{cm}$ $$\begin{aligned} & =120 \mathrm{m}+360 \mathrm{cm} \\ & =120 \mathrm{m}+3 \mathrm{m} 60 \mathrm{cm}=123 \mathrm{m} 60 \mathrm{cm} . \end{aligned}$$
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