Wendy had 100 marbles. Fred had 25 of what Wendy had. After Wendy used some of his marbles and Fred used 14 of his marbles, Wendy had 15 as many marbles left as Fred.
- How many marbles did Fred have at first?
- How many marbles did Wendy use?
|
Wendy |
Fred |
Before |
100 |
40 |
Change |
- ? |
- 10 |
After |
6 |
30 |
(a)
Number of marbles that Fred had at first
=
25 x 100
= 40
(b)
Number of marbles that Fred used
=
14 x 40
= 10
Number of marbles that Fred had left
= 40 - 10
= 30
Number of marbles that Wendy had left
=
15 x 30
= 6
Number of marbles that Wendy used
= 100 - 6
= 94
Answer(s): (a) 40; (b) 94