GMAT Data Sufficiency

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Source: OG11th

Level: 3

If Car X followed Car Y across a certain bridge that is mile long, how many seconds did it take Car X to travel across the bridge?

(1)Car X drove onto the bridge exactly 3 seconds after Car Y drove onto the bridge and drove off the bridge exactly 2 seconds after Car Y drove off the bridge.

(2)Car Y traveled across the bridge at a constant speed of 30 miles per hour.

  • A Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
  • B Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
  • C BOTH statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
  • D EACH statement ALONE is sufficient.
  • E Statements (1) and (2) TOGETHER are NOT sufficient.

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