Answer:
(a) 2% (b) 15
Step-by-step explanation:
(a):
80 - blue (32%)
60 - white (24%)
50 - red (20%)
45 - black (18%)
10 - silver (4%)
Total: 245
5 - other (2%)
(b):
60 - white
45 - black
Difference: 15
1. 28
2. 41.66%
3. 88%
4. 36
5. 94.5
6. 30%
7. 83.33%
8. 20%
9. 20%
10. 62.5%
11. 80%
35
100 / 50 = 2
70 / 2 = 35