PSLE The ratio of the number of jumpsuits to that of blazers in a factory outlet was 5 : 4 in the end. After 14 blazers were sold, the ratio of the number of jumpsuits to that of blazers became 3 : 2. What was the total number of jumpsuits and blazers in the factory outlet in the end?
|
Jumpsuits |
Blazers |
Total |
Before |
5x3 = 15 u |
4x3 = 12 u |
27 u |
Change |
|
- 14 |
|
After |
3x5 = 15 u |
2x5 = 10 u |
25 u |
The number of jumpsuits remains unchanged. Make the number of jumpsuits the same.
LCM of 3 and 5 is 15.
Number of blazers sold
= 12 u - 10 u
= 2 u
1 u = 14 ÷ 2 = 7
Total number of jumpsuits and blazers in the end
= 15 u + 10 u
= 25 u
= 25 x 7
= 175
Answer(s): 175