Some pupils are playing card games. If each of them is given 4 cards, there will be 10 cards left. If each of them is given 2 cards, there will be 20 cards left.
- How many pupils are there?
- How many cards are there?
(a)
Number of extra cards for the pupils
= 20 - 10
= 10
Number of extra cards for each pupil
= 4 - 2
= 2
Number of pupils
= 10 ÷ 2
= 5
(b)
Number of cards
= 4 x 5 + 10
= 20 + 10
= 30
Answer(s): (a) 5; (b) 30