Ian had
58 the number of beads that Andy had at first. After Andy gave Ian 32 of his beads, Ian had
34 the number of beads that Andy had. How many beads did Ian have at first?
| |
Ian |
Andy |
Total |
| Before |
5x7 =
35 u |
8x7 =
56 u |
13x7 =
91 u |
| Change |
+ 4 u |
- 4 u |
|
| After |
3x13 =
39 u |
4x13 =
52 u |
7x13 =
91 u |
The total number of beads that Ian and Andy had at first and in the end remains unchanged. Make the total number of beads the same. LCM of 13 and 7 is 91.
Number of beads that Andy gave Ian
= 39 u - 35 u
= 4 u
4 u = 32
1 u = 32 ÷ 4 = 8
Number of beads that Ian had at first
= 35 u
= 35 x 8
= 280
Answer(s): 280
