1) There were 50 more full-time students enrolled at college T in the fall of 2000 than in the fall of 1999.
Since we do not know the number of full time students, this 50 can be very small or very large.
-if in 1999, there was only 1 full time student, and in 2000 number increased by 50, then no. of students = 51
% increase = \(\frac{50}{1}\)*100 = 5000%
-if in 1999, there were 1000 full time student, and in 2000 number increased by 50, then no. of students = 1050
% increase = \(\frac{50}{1000}\)*100 = 5%
Hence insufficient.
(PS: you need not do the above calculation. Remember since we do not know the base value, increase in value will never be sufficient to find the percentage increase.)2) The total number of students enrolled at college T increased by 5 percent from the fall of 1999 to the fall of 2000.
It is similar to St 1: since we don't know the initial total number of students, we can not find the number of total number/full time students.
hence insufficient.
Even after combining St 1 & 2, we are unable to find the number of full time students which is required to find the % increase in full time students. Hence
NOT SUFFICIENT.
Check your understanding :if we change the second statement as:
New Statement2):The number of full time students enrolled at college T increased by 5 percent from the fall of 1999 to the fall of 2000.
Now find the number of Part time time students in 2000.adkikani wrote:
Quote:
Some of the students enrolled at college T are part-time students and the rest are full-time. By what percent did the number of full-time students enrolled at college T increase from fall of 1999 to the fall of 2000?
1) There were 50 more full-time students enrolled at college T in the fall of 2000 than in the fall of 1999.
2) The total number of students enrolled at college T increased by 5 percent from the fall of 1999 to the fall of 2000.
bumping
gmatbusters niks18 amanvermagmat Bunuel VeritasPrepKarishma for validating the approach/ suggesting an efficient one.
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