GMAT 考满分题库

Khalil drove 120 kilometers in a certain amount of time. What was his average speed, in kilometers per hour, during this time?

1.If Khalil had driven at an average speed that was 5 kilometers per hour faster, his driving time would have been reduced by 20 minutes.

2.If Khalil had driven at an average speed that was 25% faster, his driving time would have been reduced by 20%.
  • 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 statements 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: A

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