Two friends Alich and Delich use the following code number system in their business for the purpose of security:
They use 10, 9, ..., 1 for 1, 2,....,10 respectively; 20, 19, ..., 11 for 11, 12, ..., 20 respectively; 30, 29,...2l for 21, 22,..., 30 respectively; and so on. Alich told Delich "I bought a rim of paper for Rs 12100 and sold the same for Rs 12095".... What was the actual loss or gain incurred by Alich ?
(1)Gain ,Rs 5
(2)Gain, Rs 4
(3)Loss, Rs 4
(4)Gain , Rs 13
here is the solution and my doubt
http://docs.google.com/Doc?id=dc83hzcs_205cgt77n
2007-10-24
15:01:17
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1 answers
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calculus
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