Gabby had 100 beads. Will had 35 of what Gabby had. After Gabby used some of his beads and Will used 13 of his beads, Gabby had 12 as many beads left as Will.
- How many beads did Will have at first?
- How many beads did Gabby use?
| |
Gabby |
Will |
| Before |
100 |
60 |
| Change |
- ? |
- 20 |
| After |
20 |
40 |
(a)
Number of beads that Will had at first
=
35 x 100
= 60
(b)
Number of beads that Will used
=
13 x 60
= 20
Number of beads that Will had left
= 60 - 20
= 40
Number of beads that Gabby had left
=
12 x 40
= 20
Number of beads that Gabby used
= 100 - 20
= 80
Answer(s): (a) 60; (b) 80
