Given Data,
The length of the rod = 3 cm
To measure 120 m , Rod is apply by 120 times .
Therefore, total length that is measure by longer part = 120 x 3
= 360 cm = 3.60 m (∵ 100cm = 1m)
Then, the actual length of rope = 120m + 3.6m
= 123 m 60 cm
Hence, the answer is 123 m 60 cm.

RRB JE Mechanical Question Paper 2014 (Set-1) with Answer Key

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100) Which of the following pairs was announced recently as Joint Noble Peace Prize winner

Kailash Satyarthi and Malala

RRB JE Mechanical Question Paper 2014 (Set-1) with Answer Key

Related RRB JE Mechanical Question Paper 2014 (Set-1) with Answer Key

101) Who is called the Father of Hindi Theatre of India?

Bhartendu Harichandra

102) What is the largest possible length of a scale that can be used to measure exactly the lengths 3 m, 5 m 10 cm and 12 m 90 cm?

30 cm

103) was asked to find answer by dividing a number by 3. But instead of dividing it, he multiplied it by 3 and got 29.7. What was the correct answer?

3.3

104) After measuring 120 meters of a rope, it was discovered that the metre rod was 3 cm longer. The true length of the rope measured is

123m 60 cm

RRB JE Mechanical Question Paper 2014 (Set-1) with Answer Key