How long did it take Jane to drive to the doctors office? (She did not stop alon

Question

How long did it take Jane to drive to the doctors office? (She did not stop along the way). Statement 1: Her average speed was 40 miles per hour. Statement 2: If she had driven twice as fast she would have taken 30 minutes.
Which of the statements above make it possible to answer the question?
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 are sufficient. Statement 1 and 2 together are not sufficient. How long did it take Jane to drive to the doctors office? (She did not stop along the way). Statement 1: Her average speed was 40 miles per hour. Statement 2: If she had driven twice as fast she would have taken 30 minutes.
Which of the statements above make it possible to answer the question?
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 are sufficient. Statement 1 and 2 together are not sufficient. Statement 1: Her average speed was 40 miles per hour. Statement 2: If she had driven twice as fast she would have taken 30 minutes.
Which of the statements above make it possible to answer the question?
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 are sufficient. Statement 1 and 2 together are not sufficient.

Explanation / Answer

In second statement it is given that if she had driven twice as fast, she would have taken 30mins. It means with her current speed she will take 30*2=60mins=1hour.

Therefore statement 2 alone is sufficient but statement 1 alone is not sufficient.

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