1.

A shopkeeper bought three varieties A, B and C of rice in different amounts at the rates of Rs. 34.50, Rs. 28.60 and Rs. 32.40 per kg respectively. In which of the following transactions he will gain maximum ?1). He bought 20 kg of rice of varieties A and C each and sold at Rs. 38 and Rs. 36 per kg respectively.2). He bought 30 kg of rice of variety A and sold at Rs. 37 per kg and he bought 40 kg of variety of B and sold Rs. 33 per kg.3). He bought 20 kg of rice of variety B and sold at Rs. 40 per kg and he bought 40 kg of variety C and sold at Rs. 38 per kg4). He bought 25 kg of rice of variety C and sold at Rs. 42 per kg and he bought 30 kg of variety A and sold at Rs. 38 per kg

Answer»

Solution

Given that , COST of A is 34.5 , B is 28.6 , C is 32.4 .ACCORDING to the options , he bought two varieties .
so, Total gain = gain DUE to first item + gain due to second item
Going by options , option (A)20(38-34.5) +20(36-32.4) = 142
option (B)30(37-34.5) +40(33-28.6) = 251
option (C)20(40-28.6) +40(38-32.4) = 452

So , option (C) gives more gain.


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