A drink stall had 48 big and small packets of juice. The number of big packets is
313 of the number of small packets. After selling a few small packets of juice, there are
14 as many big packets as small packets left. How many small packets of juice were sold?
|
Big packets |
Small packets |
Total |
Before |
3 u |
13 u |
16 u |
Change |
|
- 1 u |
|
After |
1x3 = 3 u |
4x3 = 12 u |
|
The number of big packets remains unchanged. Make the number of big packets the same. LCM of 3 and 1 is 3.
Number of big packets at first = 3 u
Number of small packets at first = 13 u
Total number of packets at first
= 3 u + 13 u
= 16 u
16 u = 48
1 u = 48 ÷ 16 = 3
Number of small packets sold
= 13 u - 12 u
= 1 u
= 3
Answer(s): 3