Raeann has some marbles in a bag. The number of marbles is less than 20. If she gives 3 marbles to each pupil, she will have none left. If she gives 6 marbles to each pupil, she will need 12 more marbles.
- How many pupils does Raeann have?
- How many marbles are there in the bag?
(a)
Total extra number of marbles that Raeann will need = 12
Number of extra marbles that Raeann will give to each pupil
= 6 - 3
= 3
Number of pupils that Raeann has
= 12 ÷ 3
= 4
(b)
Number of marbles that Raeann has
= 3 x 4
= 12
Answer(s): (a) 4; (b) 12