Last Friday, Ahmad had twice as many buttons as Ivan. Today, Ahmad gives 56 of his buttons to his sister. Now, Ivan has four times as many buttons as Ahmad. How many buttons does Ivan have?
| |
Ahmad |
Ivan |
| Before |
2x4 =
8 u |
1x4 =
4 u |
| Change |
- 56 |
|
| After |
1 u |
4 u |
The number of buttons that Ivan had at first and in the end remains unchanged. Make the number of buttons that Ivan has the same. LCM of 1 and 4 is 4.
Number of buttons that Ahmad gives to his sister
= 8 u - 1 u
= 7 u
7 u = 56
1 u = 56 ÷ 7 = 8
Number of buttons that Ivan has
= 4 u
= 4 x 8
= 32
Answer(s): 32
