I am confused since I thought St 1 is sufficient. Question is if Suzy paid <$p. From St 1, she paid 0.8p+ 0.1*0.8p = 0.88p < p. Did I miss something?
Thanks in advance.
Bunuel wrote:
Did Suzy pay less than a total of $p dollars for the phone?
(1) The price Suzy paid for her phone was $0.80p, excluding the 10 percent sales tax.
(2) The price Suzy paid for her phone was $200, excluding the 10 percent sales tax.
Question: Is Suzy < p ?Statement 1: S = 0.8P+0.1*Service taxNo information about p to compare it with 0.1*Service tax hence
NOT SUFFICIENT
Statement 2: Suzy = 200+0.1*Service TaxNo information about p to compare it with 0.1*Service tax and 200 hence
NOT SUFFICIENT
Combining the two statementsSuzy = 200+0.1*Service Tax = 0.8P+0.1*Service tax
i.e. p = 200/0.8 = 250
But we can't compare 0.1*Service Tax with 50 (250-200) hence
NOT SUFFICIENT
Answer: Option E
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77% (01:00) correct 
