A.
Let the price of one half gallon be p.
From St1,
in the discounted sale he bought p+0.5p=1.5p.
during normal times he would have bought the same for 2p.
Hence the savings percentage is (2p-1.5p)/2p*100
sufficient
From st2 we dont have any info about the discounted price. insufficient.
Let the price of one half gallon be p.
From St1,
in the discounted sale he bought p+0.5p=1.5p.
during normal times he would have bought the same for 2p.
Hence the savings percentage is (2p-1.5p)/2p*100
sufficient
From st2 we dont have any info about the discounted price. insufficient.
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