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### Discussion :: True Discount

1.  A man purchased a cow for Rs. 3000 and sold it the same day for Rs. 3600, allowing the buyer a credit of 2 years. If the rate of interest be 10% per annum, then the man has a gain of:
2.  A. 0% B. 5% C. 7.5% D. 10%

Explanation :

C.P. = Rs. 3000.

S.P. = Rs.$$[\frac { 3600*100 } { 100+ (10*2)}]$$= Rs. 3000.

Gain = 0%.

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