police West Bengal Police SI 2024 Mock Test Series Quantitative Aptitude Percentage

Applying pulling force a string of rubber is increased by 40% and then force is withdrawn. What percentage of length is decreased to regain its original configuration ?

1
40%
2
\(34 \frac{1}{7}\%\)
3
\(32 \frac{4}{7}\%\)
4
\(28 \frac{4}{7}\%\)
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