Jawapan

2016-09-22T20:52:38+08:00
Hasil  darab nilai a dan b=0.0984
2016-09-23T18:08:06+08:00
127.0987 = 100 + 20 + 7 + A + B + 0.0007
A = 0.0900
B = 0.0080

A×B = 0.0900 × 0.0080 = 0.00072