Class X has 5 sections which have 40, 50, 50, 60 and 60 students, respectively. The pass per cent of these sections are 80%, 76%, 64%, 65% and 70%, respectively. The pass per cent of the entire class X (correct to two decimal places) is:
1
70.38%
2
71.83%
3
72.81%
4
69.73%