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