# Civil Engineering - UPSC Civil Service Exam Questions - Discussion

2.

A line of true length 500 m when measured by a 20 m tape is reported to be 502 m long. The correct length of the tape is

 [A]. 19.92 m [B]. 20.08 m [C]. 20.80 m [D]. 21 m

Explanation:

No answer description available for this question.

 Manjunath Biradar said: (Jun 25, 2014) 500y = 502x20. y = 502x20/500. y = 20.08.

 Sumon said: (Jan 21, 2017) (TrueLength/MeasuredLength) = (IncorrectLength of Tape or Chain/Correct Length of Tape or Chain). 500/502 = 20/L, L = 20.08m.

 Navi said: (Mar 14, 2017) The answer should be A.

 Deepak Rawat said: (Apr 20, 2017) Yes, it must be A. It will take 25+1 length to measure 502 meter in 25 length it will measure 500 m and last one length it will measure 2m. Actual length=19.92 measured = 20m. L actual={19.92x25}+ 2 = 500m. L mesrd=(20x25)+2 = 502m.

 Chhaya said: (May 23, 2017) Agree @Deepak Rawat. (500/502) * 20 = 19.92.

 Shivu said: (Jun 13, 2017) Here, 500 = (x/20) * 502, x = 19.92 m.

 Saddam Haleem said: (Apr 18, 2018) "A" option is correct tape is too short so thats the reason it gives greater lenght as compared to actual lenght.

 Shaharukh Pathan said: (May 12, 2018) Option A is the correct answer (500x20 )÷ 502 = 19.92m.

 Pushp Shankar said: (Oct 26, 2018) @All. True * true = wrong * wrong. 500 * 20=502 * wrong length of tape, So, after calculation, it is 19.92 that is A is the correct answer.

 K-Wireko said: (Oct 24, 2019) X/20 = 500/502. X = 500/502*20 = 19.92m. The answer is A.

 Anuj said: (Dec 28, 2019) A is correct. True*True = False*False 20*500 = 502*l L = 19.92m.