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simple interest on 500 for 4 years at 6.25% per annum is equal to the simple interest on 400 at 5% per annum for a certain period of time. The period of time is:(500 पर 4 वर्ष का 6 .25 % वार्षिक दर से साधारण बियाज तथा 400 का किसी समयवधि के लिए 5 % वार्षिक दर से साधारण बियाज हो ही समयवधि होगी )A. 4yearsB. 5yearsC. `6(1)/(4)`yearsD. `8(2)/(3)`years |
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Answer» (c ) Let to the question, `(500xx4xx6.25)/(100)=(400xx5xxt)/(100)` `5xx4xx625=400xx5xxt` `t=(625)/(100)=(25)/(4)=6(1)/(4)years` |
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