The number of avocados is 5 times as many as the number of durians. After buying another 28 avocados and 72 durians, the number of avocados is the same as the number of durians. What is the number of avocados at first?
| |
Avocados |
Durians |
| Before |
5 u |
1 u |
| Change |
+ 28 |
+ 72 |
| After |
5 u + 28 |
1 u + 72 |
The number of avocados and durians is the same in the end.
5 u + 28 = 1 u + 72
5 u - 1 u = 72 - 28
4 u = 44
1 u = 44 ÷ 4 = 11
Number of avocados at first
= 5 u
= 5 x 11
= 55
Answer(s): 55
