Mathematics · Compound Interest
चक्रवृद्धि ब्याज पर निवेश की गई एक धनराशि 9 वर्षों में अपने आप की दोगुनी हो जाती है। समान ब्याज दर पर यह कितने वर्षों में अपने आप की चार गुनी हो जाएगी?
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