Mathematics · Percentage
By applying a pulling force, the length of a rubber string is increased by 40%, and then the force is withdrawn. What percentage of the new length must decrease for it to regain its original configuration?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 140%
- 2347%
- 332%
- 42847%✓
Correct answer
2847%
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