A hotel has 20 large rooms and 25 small rooms, which can accommodate 150 people. The big room can accommodate three more people than the small room. How many people can live in the big and small rooms?

Set up small rooms, each room can accommodate X people, and a large room like this can accommodate X+3 people.

So obtained

20(X+3)+25X= 150

45X= 150-60

X=2

A: Each small room can accommodate 2 people and each large room can accommodate 5 people.

Two identical big boxes and six identical small boxes are full of eggs, which is exactly 900 Each big box contains 50 more eggs than the small one. How many eggs are there in each big box and each small box?

Let the small one put X and the big one put X+50.

2(X+50)+6X=900

X= 100

Is the small put 100, big put 150.