Yen had 270 beads. Riordan had 19 of what Yen had. After Yen used some of his beads and Riordan used 13 of his beads, Yen had 34 as many beads left as Riordan.
- How many beads did Riordan have at first?
- How many beads did Yen use?
| |
Yen |
Riordan |
| Before |
270 |
30 |
| Change |
- ? |
- 10 |
| After |
15 |
20 |
(a)
Number of beads that Riordan had at first
=
19 x 270
= 30
(b)
Number of beads that Riordan used
=
13 x 30
= 10
Number of beads that Riordan had left
= 30 - 10
= 20
Number of beads that Yen had left
=
34 x 20
= 15
Number of beads that Yen used
= 270 - 15
= 255
Answer(s): (a) 30; (b) 255
