Let 'c' be the cost of each coat and 'p' be the selling price of each coat.
The question asks us to find the gross profit (gp) i.e. 20p-20c=?
St 1 if p=2p then the gp = 2400
i.e. 20(2p)-20c = 2400
there is no other information with which we can compute the values of 'p' and 'c' INSUFF
St 2 if p=p+2, gp=440
20(p+2)-20c=440
20p+4-20c=440
20p-20c=436 - - - this is what we have to find
Hence St 2 is SUFF
Ans is B
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