Some friends are playing card games. If each of them is given 7 cards, there will be 18 cards left. If each of them is given 4 cards, there will be 30 cards left.
- How many friends are there?
- How many cards are there?
(a)
Number of extra cards for the friends
= 30 - 18
= 12
Number of extra cards for each friend
= 7 - 4
= 3
Number of friends
= 12 ÷ 3
= 4
(b)
Number of cards
= 7 x 4 + 18
= 28 + 18
= 46
Answer(s): (a) 4; (b) 46