I am not quit sure the meaning of explanation, so I couldn't figure out why the answer is E.
Can someone explain to me?
Thanks a lot.
Q10
Of the 230 single-family homes built in City X last year, how many were occupied at the end of the year?
(1) Of all single-family homes in City X, 90 percent were occupied at the end of alst year.
(2) A total of 7,200 single-family homes in City X were occupied at the end of last year.
[explanation]========================
(1) The percentage of the occupied signle-family
home that were built last year is not given, and so
the number occupied cannot be found; NOT sufficient.
(2) Again, there is no information about the
occupancy of the single-family homes that were built
last year; NOT sufficent.
Together (1) and (2) only yield the total number of
the single-famikly homes that were occupied.
Neither statement offers the needed information as
to how many of the single-family homes built last
year were indeed occupied at the end of last year.