Ivan had
25 as many marbles as Yoko. After Ivan bought another 22 marbles, he had 14 less marbles than Yoko. How many marbles did Ivan have at first?
|
Ivan |
Yoko |
Before |
2 u |
5 u |
Change |
+ 22 |
|
After |
2 u + 22 |
5 u |
Yoko had 14 more marbles than Ivan in the end. So, if Ivan had another 14 marbles, he would have the same number of marbles as Yoko.
5 u = 2 u + 22 + 14
5 u - 2 u = 22 + 14
3 u = 36
1 u = 36 ÷ 3 = 12
Number of marbles that Ivan had at first
= 2 u
= 2 x 12
= 24
Answer: 24