Răspuns :
10x4=40 periute obisnuite
40:4=10 periute electrice
total: 40+10=50 periute
40:4=10 periute electrice
total: 40+10=50 periute
10 * 4 = 40 ( periute / obișnuite )
40: 4 = 10 ( periute / electrice )
40 + 10 = 50 ( periute / total )
R : 44 periute
E : 10 * 4 + 10 * 4 : 4 = 50
40: 4 = 10 ( periute / electrice )
40 + 10 = 50 ( periute / total )
R : 44 periute
E : 10 * 4 + 10 * 4 : 4 = 50