Peter and Eric have 17 beads altogether. Peter has 7 more beads than Eric. Find the number of beads each boy has.
- Eric
- Peter
Number of beads that Eric has = 1 u
Number of beads that Peter has = 1 u + 7
Total number of beads
= 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 beads that Eric has
= 1 u
= 5
(b)
Number of beads that Peter has
= 1 u + 7
= 5 + 7
= 12
Answer(s): (a) 5; (b) 12
