Japheth and Daniel have 17 marbles altogether. Japheth has 7 more marbles than Daniel. Find the number of marbles each boy has.
- Daniel
- Japheth
Number of marbles that Daniel has = 1 u
Number of marbles that Japheth has = 1 u + 7
Total number of marbles
= 1 u + 1 u + 7
= 2 u + 7
2 u + 7 = 17
2 u = 17 - 7 = 10
1 u = 10 ÷ 2 = 5
(a)
Number of marbles that Daniel has
= 1 u
= 5
(b)
Number of marbles that Japheth has
= 1 u + 7
= 5 + 7
= 12
Answer(s): (a) 5; (b) 12
