Mathematics · Compound Interest
कोई धनराशि चक्रवर्धि ब्याज पर 10 वर्षों में अपने आप की दोगुनी हो जाती है। समान ब्याज दर पर वह कितने वर्षों में चार गुनी हो जाएगी?
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20
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