Let the total number of students be 100. Number of boys = 40, number of girls = 60. Boys who passed = 75% of 40 = 30. Girls who passed = 80% of 60 = 48. Total students who passed = 30 + 48 = 78. Percentage of students who passed = 78%. Thus, the correct answer is 78% .
27, 35, 51, 75, 109, 147
44, 57, 81, 119, 170, 234, 311.
-1236, -724, 5, 1005, 2336, 4062
180000, 7200, 360, 36, 2.4, 0.48
9 20 63 255 1285 7716
...975, 1050, 1125, 1200, 1275, 1325
75, 450, 225, 1330, 675, 4050
2824 2314 1973 1759 1634 1574
Find the wrong number in given number series.
2669, 2838, 2993, 3185, 3397, 3629
131, 212, 261, 286, 295, 299