Mathematics · Mensuration
3 सेमी, 4 सेमी और 5 सेमी त्रिज्या वाले तीन ठोस धातु के गोलों को पिघलाकर एक नया ठोस गोला बनाया जाता है। नए गोले की त्रिज्या क्या होगी?
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