Cindy has some beads in a bag. The number of beads is less than 20. If she gives 3 beads to each pupil, she will have none left. If she gives 7 beads to each pupil, she will need 16 more beads.
- How many pupils does Cindy have?
- How many beads are there in the bag?
(a)
Total extra number of beads that Cindy will need = 16
Number of extra beads that Cindy will give to each pupil
= 7 - 3
= 4
Number of pupils that Cindy has
= 16 ÷ 4
= 4
(b)
Number of beads that Cindy has
= 3 x 4
= 12
Answer(s): (a) 4; (b) 12