Roshel has 9 coins fewer than Ivory but 30 coins more than Luis. The three children have 285 coins altogether.
- How many coins does Luis have?
- How many coins does Ivory have?
(a)
Number of coins Ivory has = 1 u
Number of coins Roshel has = 1 u - 9
Number of coins Luis has = 1 u - 9 - 30 = 1 u - 39
Total number of coins
= 1 u + 1 u - 9 + 1 u - 39
= 3 u - 48
3 u - 48 = 285
3 u = 285 + 48
3 u = 333
1 u = 333 ÷ 3 = 111
Number of coins that Luis has
= 1 u - 39
= 111 - 39
= 72
(b)
Number of coins that Ivory has
= 1 u
= 111
Answer(s): (a) 72; (b) 111
