A store had 975 comics. There were Chinese, English and Malay comics in the ratio of 8 : 3 : 4. When the store assistant brought in another 403 new comics, the number of Chinese comics was increased by 40% and the number of English comics was increased by ²₃.

1. What was the number of Malay comics that the store assistant brought in?
2. What was the percentage increase in the number of Malay comics?

	Chinese	English	Malay	Total
Before	8 u	3 u	4 u	975
Change	+ 3.2 u	+ 2 u	+ ?	+ 403
After	11.2 u	5 u	5 u	1378

Increase in the number of Chinese comics
= 40% x 8 u
= ⁴⁰₁₀₀ x 8 u
= 3.2 u

Increase in the number of English comics
= ²₃ x 3 u
= 2 u

Total number of comics at first
= 8 u + 3 u + 4 u
= 15 u

15 u = 975

1 u = 975 ÷ 15 = 65

Increase in the number of Chinese and English comics
= 3.2 u + 2 u
= 5.2 u
= 5.2 x 65
= 338

Number of Malay comics brought in
= 403 - 338
= 65 

(b)
Number of Malay comics at first
= 4 u
= 4 x 65
= 260

Percentage increase in Malay comics
= ⁶⁵₂₆₀ x 100%
= 25%

Answer(s): (a) 65; (b) 25%