olivite wrote:
A new tower has just been built at the Verbico military hospital; the number of beds available for patients at the hospital is now 3 times the number available before the new tower was built. Currently, 1/3 of the hospital's original beds, as well as 1/5 of the beds in the new tower, are occupied. For the purposes of renovating the hospital's original wing, all of the patients in the hospital's original beds must be transferred to beds in the new tower. If patients are neither admitted nor discharged during the transfer, what fraction of the beds in the new tower will be unoccupied once the transfer is complete?
A. 11/30
B. 29/60
C. 17/30
D. 19/30
E. 11/15
I don't understand how can you infer from the sentence "the number of beds available for patients at the hospital is now 3 times the number available before the new tower was built" that the "The new tower is not itself three times the size of the old wing; the problem states that the capacity of the entire hospital is three times its original value, so the new tower has twice as many beds as the old wing"
I keep re-reading the sentece and still see that the new hospital is 3 times bigger than the old one.
HELP
Let total number of beds in the hospital before the new tower =\(x\)
Now , the total number of beds available after the new tower was built = \(3x\)
therefore the total number of beds in the new tower = \(3x - x = 2x\)
now total number of occupied beds from the original beds(Before the new tower was built)
= \(\frac{1}{3}x\)
now total number of occupied beds from the new tower
= \(\frac{1}{5}2x\)
number of beds unoccupied from the new tower
= \(2x\)- \(\frac{2}{5}x\) = \(\frac{8}{5}x\)
now, numbers of beds left unoccupied in new tower after we shift the patients from old building to new tower
= \(\frac{8}{5}x\) -\(\frac{1}{3}x\)
= \(\frac{19}{15}x\)
Now, we have total number of
unoccupied beds in the new tower(\(\frac{19}{15}x\)), as well as the total number of beds(
occupied and unoccupied) in the new tower(\(2x)\)
therefore the answer is = \(\frac{19x}{15 *2x}\) = \(\frac{19}{30}\)
Option D