Wesley had 233 marbles more than Tina. Given that they have a total of 509 marbles,
- how many marbles did Tina have?
- how many marbles did Wesley have?
(a)
Number of marbles that Wesley that = 1 u + 233
Number of marbles that Tina had = 1 u
Total number of marbles
= 1 u + 233 + 1 u
= 2 u + 233
2 u + 233 = 509
2 u = 509 - 233
2 u = 276
1 u = 276 ÷ 2 = 138
Number of marbles that Tina had
= 1 u
= 138
(b)
Number of marbles that Wesley had
= 1 u + 233
= 138 + 233
= 371
Answer(s): (a) 138; (b) 371
