Jawapan

2016-09-06T21:33:57+08:00
15 x 4 = 60
60- 10- 11- 12 = 27
= 27.
2016-09-06T21:34:38+08:00
15 x 4 = 60

60 - (10 + 11 + 12)
= 60 - 33
= 27