Some pupils are playing card games. If each of them is given 7 cards, there will be 11 cards left. If each of them is given 3 cards, there will be 27 cards left.
- How many pupils are there?
- How many cards are there?
(a)
Number of extra cards for the pupils
= 27 - 11
= 16
Number of extra cards for each pupil
= 7 - 3
= 4
Number of pupils
= 16 ÷ 4
= 4
(b)
Number of cards
= 7 x 4 + 11
= 28 + 11
= 39
Answer(s): (a) 4; (b) 39