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GMAT/Data Sufficiency
Driving 20 hours per day, a bus can travel from city A to city B in exactly three days if it takes route X. How many miles are there between city A and city B along route X?
(1) The bus takes 10 percent longer for the trip if it takes route Y.
(2) If the average speed of the bus using route X were 10 miles per hour slower, it would take exactly one extra day to make the trip.
A) statement I alone is sufficient to answer the question, but statement 2 alone is not sufficient
B) statement 2 alone is sufficient to answer the question, but statement I alone is not sufficient
C) both statements together are needed to answer the question, but neither statement alone Is sufficient
D) either statement by itself is sufficient to answer the question
E) not enough facts are given to answer the question
| ОТВЕТЫ И КОММЕНТАРИИ |
| Решение |
B) statement 2 alone is sufficient to answer the question, but statement I alone is not sufficient |
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Chord Query
For a circle with center point P, chord XY is the perpendicular bisector of
radius AP (A is a point on the edge of the circle). What is the length of cord
XY?
(1) The circumference of circle P is twice the area of circle P.
(2) The length of Arc XAY = .
(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 statements 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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