Some children are playing card games. If each of them is given 9 cards, there will be 5 cards left. If each of them is given 7 cards, there will be 17 cards left.
- How many children are there?
- How many cards are there?
(a)
Number of extra cards for the children
= 17 - 5
= 12
Number of extra cards for each child
= 9 - 7
= 2
Number of children
= 12 ÷ 2
= 6
(b)
Number of cards
= 9 x 6 + 5
= 54 + 5
= 59
Answer(s): (a) 6; (b) 59