Traditional Culture Encyclopedia - Hotel reservation - This hotel has fifty triple rooms and double rooms.

This hotel has fifty triple rooms and double rooms.

The specific steps are as follows:

Let three rooms be x and two rooms be y.

3x+2y=50 ①

75x+70y= 15 10 ②

From ① x35:105x+70y =1750③.

③—②

105 x+70y—(75x+70y)= 1750— 15 10

105x+70y—75x—70y=240

30x=240

x=8

Substitute x=8 into ①.

24+2y=50

2y=50— 13

2y=26

y= 13

Answer: triple room 8, double room 13.