Sabrina has some beads in a bag. The number of beads is less than 30. If she gives 5 beads to each pupil, she will have none left. If she gives 10 beads to each pupil, she will need 20 more beads.
- How many pupils does Sabrina have?
- How many beads are there in the bag?
(a)
Total extra number of beads that Sabrina will need = 20
Number of extra beads that Sabrina will give to each pupil
= 10 - 5
= 5
Number of pupils that Sabrina has
= 20 ÷ 5
= 4
(b)
Number of beads that Sabrina has
= 5 x 4
= 20
Answer(s): (a) 4; (b) 20