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2015-11-05T00:20:25+05:30

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The money borrowed by the farmer (principal) = Rs 2400
Rate of Interest = 12% p.a.
Time (duration) of interest = 5/2 years
Interest = p * r * t / 100
            = (2400 * 12 * 5/2) / 100
            =  720
Amount = P + S.I.
            = 2400 + 720
            = Rs 3120 
A/q,
=> Amount paid = 1200 + cost of cow
=> 3120 = 1200 + cost of cow
=> cost of cow = 3120 - 1200 = 1920
So, the cost of the cow is Rs 1920
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