PSLE The ratio of the number of windbreakers to that of blazers in a factory outlet was 8 : 7 in the end. After 108 blazers were sold, the ratio of the number of windbreakers to that of blazers became 5 : 1. What was the total number of windbreakers and blazers in the factory outlet in the end?
|
Windbreakers |
Blazers |
Total |
Before |
8x5 = 40 u |
7x5 = 35 u |
75 u |
Change |
|
- 108 |
|
After |
5x8 = 40 u |
1x8 = 8 u |
48 u |
The number of windbreakers remains unchanged. Make the number of windbreakers the same.
LCM of 5 and 8 is 40.
Number of blazers sold
= 35 u - 8 u
= 27 u
1 u = 108 ÷ 27 = 4
Total number of windbreakers and blazers in the end
= 40 u + 8 u
= 48 u
= 48 x 4
= 192
Answer(s): 192