guddo
The Smiths take their children to a certain amusement park on exactly one Saturday every calendar month. Today is the 1st of July. Did the Smiths and their children make a trip to the amusement park on one of the past three days?
(1) The Smiths made their June trip to the amusement park on one of the past seven days.
(2) The 23rd of last month was a Sunday.
Statement 1(1) The Smiths made their June trip to the amusement park on one of the past seven days.
While we know that Smiths made a trip to the amusement park on one of the past seven days, we don't have any information to conclude that one of the past three days was a Saturday.
Hence, without that information we cannot conclusively answer the question "
Did the Smiths and their children make a trip to the amusement park on one of the past three days? ". Hence, we can eliminate A and D.
Statement 2(2) The 23rd of last month was a Sunday.
If the 23rd of June was a Sunday, the next Sunday is the 30th of June. However, we don't know whether the Smiths took their children to the amusement park on any of the previous Saturdays or did they take their children to the amusement park on the 29th of June.
Hence, we can eliminate B.
CombinedFrom the question premise, we know that the Smiths take their children to the amusement park on Saturdays. From Statement 2 we know that the 29th of June was a Saturday. From Statement 1, we know that the Smiths made their June trip to the amusement park on one of the past seven days. Hence they must have made that trip on the 29th of June.
Did the Smiths and their children make a trip to the amusement park on one of the past three days? ⇒ Yes !
The statements combined are sufficient to answer the question.
Option C