PSLE The ratio of the number of sweaters to that of jackets in a boutique was 3 : 2 in the end. After 136 jackets were sold, the ratio of the number of sweaters to that of jackets became 10 : 1. What was the total number of sweaters and jackets in the boutique in the end?
|
Sweaters |
Jackets |
Total |
Before |
3x10 = 30 u |
2x10 = 20 u |
50 u |
Change |
|
- 136 |
|
After |
10x3 = 30 u |
1x3 = 3 u |
33 u |
The number of sweaters remains unchanged. Make the number of sweaters the same.
LCM of 10 and 3 is 30.
Number of jackets sold
= 20 u - 3 u
= 17 u
1 u = 136 ÷ 17 = 8
Total number of sweaters and jackets in the end
= 30 u + 3 u
= 33 u
= 33 x 8
= 264
Answer(s): 264