Traditional Culture Encyclopedia - Tourist attractions - A tour group of 5 1 person went to a hotel to stay. There are two rooms and three rooms in the hotel, two rooms in 30 yuan and three rooms in 20 yuan every night.
A tour group of 5 1 person went to a hotel to stay. There are two rooms and three rooms in the hotel, two rooms in 30 yuan and three rooms in 20 yuan every night.
(1) The number of double rooms is X, and the number of triple rooms is Y.
Then x+y=2 1 2x+3y=5 1.
X= 12 y=9。
Answer: 12 rooms, each room has 9 rooms.
(2) 30×12× 2+20× 9× 3 = 720+540 =1260 (yuan)
A: The cost of a tour group staying for one night is 1260 yuan.
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