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题库 / Prep2007E1-DS-143
In the figure shown, the measure of angle PRS is how many degrees greater than the measure of angle PQR ?
(1) The measure of angle QPR is 30°
(2) The sum of the measures of angles PQR and PRQ is 150°
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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只要知道一个 减 值就可以。两个条件都可以知道 两个∠相减的数值。
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