数据充分性分析DS-XBHR
出处: Manhattan



While snail R starts to move from point A to C via AC directly, snail S starts to move from point B to C via BC directly. After the snails meet at point C, R moves to D with S's former speed, while S moves to E with Rs former speed. Do the snails reach their destinations simultaneously?

1. S moves with the speed of 1 centimeter per minute.

2. R moves twice as fast as S.
  • AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

  • BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

  • CBOTH statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

  • DEACH statement ALONE is sufficient.

  • EStatements (1) and (2) TOGETHER are NOT sufficient.

显示答案
正确答案:B
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