Zara has some balls in a bag. The number of balls is less than 30. If she gives 5 balls to each pupil, she will have none left. If she gives 8 balls to each pupil, she will need 15 more balls.
- How many pupils does Zara have?
- How many balls are there in the bag?
(a)
Total extra number of balls that Zara will need = 15
Number of extra balls that Zara will give to each pupil
= 8 - 5
= 3
Number of pupils that Zara has
= 15 ÷ 3
= 5
(b)
Number of balls that Zara has
= 5 x 5
= 25
Answer(s): (a) 5; (b) 25