Ivan had
35 as many beads as Sabrina. After Ivan bought another 12 beads, he had 12 less beads than Sabrina. How many beads did Ivan have at first?
|
Ivan |
Sabrina |
Before |
3 u |
5 u |
Change |
+ 12 |
|
After |
3 u + 12 |
5 u |
Sabrina had 12 more beads than Ivan in the end. So, if Ivan had another 12 beads, he would have the same number of beads as Sabrina.
5 u = 3 u + 12 + 12
5 u - 3 u = 12 + 12
2 u = 24
1 u = 24 ÷ 2 = 12
Number of beads that Ivan had at first
= 3 u
= 3 x 12
= 36
Answer: 36