Mathematics · Ratio and Proportion
तीन बाल्टियों में गेंदों का अनुपात 4:5:7 था। जब प्रत्येक बाल्टी में 10 और गेंदें रख दी जाती हैं, तो अनुपात 6:7:9 हो जाता है। प्रारंभ में गेंदों की कुल संख्या कितनी थी?
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