Question
Xuan has some marbles in a bag. The number of marbles is less than 30. If she gives 5 marbles to each pupil, she will have none left. If she gives 10 marbles to each pupil, she will need 20 more marbles.
  1. How many pupils does Xuan have?
  2. How many marbles are there in the bag?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Xuan has some marbles in a bag. The number of marbles is less than 30. If she gives 5 marbles to each pupil, she will have none left. If she gives 10 marbles to each pupil, she will need 20 more marbles.
  1. How many pupils does Xuan have?
  2. How many marbles are there in the bag?