Some pupils are playing card games. If each of them is given 7 cards, there will be 12 cards left. If each of them is given 5 cards, there will be 22 cards left.
- How many pupils are there?
- How many cards are there?
(a)
Number of extra cards for the pupils
= 22 - 12
= 10
Number of extra cards for each pupil
= 7 - 5
= 2
Number of pupils
= 10 ÷ 2
= 5
(b)
Number of cards
= 7 x 5 + 12
= 35 + 12
= 47
Answer(s): (a) 5; (b) 47