In a shop, the number of cartons of pomegranate juice sold was
12 the number of cartons left. When 24 more cartons were sold, the total number of cartons sold was 3 less than
56 the number of cartons the shop had at first. How many cartons were left?
|
Sold |
Left |
Total |
Before |
1x2 = 2 u |
2x2 = 4 u |
3x2 = 6 u
|
Change |
+ 24 |
- 24 |
|
After |
2 u + 24 |
4 u - 24 |
6 u |
Comparing the total number of cartons sold and the total number of cartons at first |
5x1 - 3 = 5 u - 3 |
|
6x1 = 6 u |
The total number of cartons is repeated. Make the total number of cartons the same. LCM of 3 and 6 is 6.
The number of cartons sold in the end is repeated.
5 u - 3 = 2 u + 24
5 u - 2 u = 24 + 3
3 u = 27
1 u = 27 ÷ 3 = 9
Number of cartons left
= 4 u - 24
= 4 x 9 - 24
= 36 - 24
= 12
Answer(s): 12