Roshel 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 8 balls to each pupil, she will need 20 more balls.
- How many pupils does Roshel have?
- How many balls are there in the bag?
(a)
Total extra number of balls that Roshel will need = 20
Number of extra balls that Roshel will give to each pupil
= 8 - 3
= 5
Number of pupils that Roshel has
= 20 ÷ 5
= 4
(b)
Number of balls that Roshel has
= 3 x 4
= 12
Answer(s): (a) 4; (b) 12