InterviewSolution
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1). 72.95%2). 64.75%3). 53.65%4). 66.36% |
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Answer» ⇒ Average = sum of elements / number of elements Given, There are 100, 200, 300 and 220 students were attends the FOUR exams named A, B, C and D respectively and PASSING PERCENTAGE for this four exams is 45%, 65%, 60% and 80% respectively. Number of passed students in A exam = = (45/100) × 100 = 45 Number of passed students in B exam = = (65/100) × 200 = 130 Number of passed students in C exam = = (60/100) × 300 = 180 Number of passed students in D exam = = (80/100) × 220 = 176 Number of passed students including four exams = = 45 + 130 + 180 + 176 = 531 Passing percentage = = {531/(100 + 200 + 300 + 220)} × 100 = (531/820) × 100 = 64.75% The passing percentage of an institute including this four exams is 64.75%. |
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