The rice bought in the canteen is three times that of flour. You can eat 25 kilograms of flour and 50 kilograms of rice every day for 6 days. How much is the rice and flour bought in the canteen?

Solution: According to the known conditions, flour is:

25x6 = 150kg。

Rice is three times as much as flour;

150x3 = 450kg。

Answer: The flour 150kg and rice/450kg bought in the canteen.