Simon had 303 coins less than Xandra. Given that they have a total of 641 coins,
- How many coins did Xandra have?
- How many coins did Simon have?
(a)
Number of coins that Xandra had = 1 u
Number of coins that Simon had = 1 u - 303
Total number of coins
= 1 u + 1 u - 303
= 2 u - 303
2 u - 303 = 641
2 u = 641 + 303
2 u = 944
1 u = 944 ÷ 2 = 472
Number of coins that Xandra had
= 1 u
= 472
(b)
Number of coins that Simon had
= 1 u - 303
= 472 - 303
= 169
Answer(s): (a) 472; (b) 169
