Timer
00:00
Answers
A
B
C
D
E
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Difficulty—
There were \(P\) people in a room when a meeting started. \(Q\) people left the room during the first hour, while \(R\) people entered the room during the same time. What expression gives the number of people in the room after the first hour as a percentage of the number of people in the room who have been there since the meeting started?
A. \(\dfrac{(P-Q)}{(P-Q+R)}\)
B. \(100 * \dfrac{(P-Q+R)}{(P-Q)}\)
C. \(\dfrac{(P+R)}{(P-Q)}\)
D. \(100 * \dfrac{(P-Q)}{(P-Q+R)}\)
E. \(100 * \dfrac{(P+R)}{(P-Q)}\)
The OA is B
A. \(\dfrac{(P-Q)}{(P-Q+R)}\)
B. \(100 * \dfrac{(P-Q+R)}{(P-Q)}\)
C. \(\dfrac{(P+R)}{(P-Q)}\)
D. \(100 * \dfrac{(P-Q)}{(P-Q+R)}\)
E. \(100 * \dfrac{(P+R)}{(P-Q)}\)
The OA is B
