Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 8 (Q.No. 2)
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
Discussion:
17 comments Page 1 of 2.
Deepak rawat said:
8 years ago
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.
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.
Pushp shankar said:
7 years ago
@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.
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.
Sumon said:
9 years ago
(TrueLength/MeasuredLength) = (IncorrectLength of Tape or Chain/Correct Length of Tape or Chain).
500/502 = 20/L,
L = 20.08m.
500/502 = 20/L,
L = 20.08m.
Saddam Haleem said:
7 years ago
"A" option is correct tape is too short so thats the reason it gives greater lenght as compared to actual lenght.
Dibakar said:
4 years ago
It measures more than the actual length. Only possible when the tape is short.
Anuj said:
6 years ago
A is correct.
True*True = False*False
20*500 = 502*l
L = 19.92m.
True*True = False*False
20*500 = 502*l
L = 19.92m.
Shaharukh pathan said:
7 years ago
Option A is the correct answer (500x20 )÷ 502 = 19.92m.
K-WIREKO said:
6 years ago
X/20 = 500/502.
X = 500/502*20 = 19.92m.
The answer is A.
X = 500/502*20 = 19.92m.
The answer is A.
Dev khld said:
5 years ago
Tap = 500x20/502.
= 19.92 m (correct Chain length).
= 19.92 m (correct Chain length).
Chhaya said:
8 years ago
Agree @Deepak Rawat.
(500/502) * 20 = 19.92.
(500/502) * 20 = 19.92.
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