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A man buys a watch for Rs. 1950 in cash an...
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A man buys a watch for Rs. 1950 in cash and sells it for Rs. 2200 at a credit of 1 year. If the rate of interest is 10% per annum, the man:


a.gains Rs. 55
b.gains Rs. 50
c.gains Rs. 45
d.NIL
 
Asked By : subramanian Categories : True DiscountAptitudeLogicalSimple Interest
  Answer:   b. gains Rs. 50
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