Abi 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 9 beads to each pupil, she will need 20 more beads.
- How many pupils does Abi have?
- How many beads are there in the bag?
(a)
Total extra number of beads that Abi will need = 20
Number of extra beads that Abi will give to each pupil
= 9 - 5
= 4
Number of pupils that Abi has
= 20 ÷ 4
= 5
(b)
Number of beads that Abi has
= 5 x 5
= 25
Answer(s): (a) 5; (b) 25