Perry and Ethan have 18 balls altogether. Perry has 2 more balls than Ethan. Find the number of balls each boy has.
- Ethan
- Perry
Number of balls that Ethan has = 1 u
Number of balls that Perry has = 1 u + 2
Total number of balls
= 1 u + 1 u + 2
= 2 u + 2
2 u + 2 = 18
2 u = 18 - 2 = 16
1 u = 16 ÷ 2 = 8
(a)
Number of balls that Ethan has
= 1 u
= 8
(b)
Number of balls that Perry has
= 1 u + 2
= 8 + 2
= 10
Answer(s): (a) 8; (b) 10
