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题库 / Prep2007E2-DS-181
Rasheed bought two kinds of candy bars, chocolate and toffee, that came in packages of 2 bars each. He handed out ~$\frac{2}{3}$~ of the chocolate bars and ~$\frac{3}{5}$~ of the toffee bars. How many packages of chocolate bars did Rasheed buy?
(1) Rasheed bought 1 fewer package of chocolate bars than toffee bars.
(2) Rasheed handed out the same number of each kind of candy bar.
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
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1) C + 1 = T (Insufficient)
2) 2/6 C = 3/10 T --> 20/18 = T/C --> 10/9 = T/C (Insufficient)
C) 10/9 = C+1/C --> 10C = 9C + 9 --> C = 9 (Sufficient)
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