Mathematics · Ratio and Proportion
A copper rod is cut into four pieces whose lengths are in the ratio 1 : 2 : 3 : 4. If the length of the second shortest piece is 30 cm, how long is the entire rod?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1150 cm✓
- 2100 cm
- 3130 cm
- 4110 cm
Correct answer
150 cm
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