Jawapan

2016-06-09T00:54:09+08:00
4 x 100% = 4 x 20 = 4 x 20 =80%
5                 1

100% bahagikan kepada 5 
1 5 1
2016-06-09T12:11:21+08:00
Formula : 4 bahagi 5 darab 100%

Per = bahagi