Mark and Ivan have 8 marbles altogether. Mark has 4 more marbles than Ivan. Find the number of marbles each boy has.
- Ivan
- Mark
Number of marbles that Ivan has = 1 u
Number of marbles that Mark has = 1 u + 4
Total number of marbles
= 1 u + 1 u + 4
= 2 u + 4
2 u + 4 = 8
2 u = 8 - 4 = 4
1 u = 4 ÷ 2 = 2
(a)
Number of marbles that Ivan has
= 1 u
= 2
(b)
Number of marbles that Mark has
= 1 u + 4
= 2 + 4
= 6
Answer(s): (a) 2; (b) 6
