Some pupils are playing card games. If each of them is given 7 cards, there will be 9 cards left. If each of them is given 3 cards, there will be 29 cards left.
- How many pupils are there?
- How many cards are there?
(a)
Number of extra cards for the pupils
= 29 - 9
= 20
Number of extra cards for each pupil
= 7 - 3
= 4
Number of pupils
= 20 ÷ 4
= 5
(b)
Number of cards
= 7 x 5 + 9
= 35 + 9
= 44
Answer(s): (a) 5; (b) 44