Shiyun had 248 marbles. Glen had 34 of what Shiyun had. After Shiyun used some of his marbles and Glen used 12 of his marbles, Shiyun had 13 as many marbles left as Glen.
- How many marbles did Glen have at first?
- How many marbles did Shiyun use?
|
Shiyun |
Glen |
Before |
248 |
186 |
Change |
- ? |
- 93 |
After |
31 |
93 |
(a)
Number of marbles that Glen had at first
=
34 x 248
= 186
(b)
Number of marbles that Glen used
=
12 x 186
= 93
Number of marbles that Glen had left
= 186 - 93
= 93
Number of marbles that Shiyun had left
=
13 x 93
= 31
Number of marbles that Shiyun used
= 248 - 31
= 217
Answer(s): (a) 186; (b) 217