Mathematics · Ratio and Proportion
तांबे की एक छड़ को चार टुकड़ों में काटा जाता है, जिनकी लंबाई का अनुपात 1 : 2 : 3 : 4 है। यदि दूसरे सबसे छोटे टुकड़े की लंबाई 30 सेमी है, तो पूरी छड़ कितनी लंबी है?
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