If 60% boys and 70% girls pass in their respective courses, then total pass percentage is :

∵ Total boys = 45 + 186 +120 +100 + 65 + 32 + 58 + 5 = 611
∴ Number of boys who pass in their respective courses = 60% of 611 = 611 x 60/100 = 366.60
Total number of girls = 25 + 23 + 25 + 12 + 25 + 20 + 12 + 3 = 145
Number of girls who pass in their respective courses =70% of 145= 145 x 70/100 = 101.50
∴ Combined pass percent = (366.6 + 101.5) x 100/(611 + 145) = 46810/756 = 61.92 = 62%