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in final exams of class 7 they are 80 students 10% students field and rest of them was promoted to class 8 an extra 25% persons of the field students drawing class 8 from other schools how many students are there in class 8 now |
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Answer» 73Step-by-step EXPLANATION:Student FAILED = 10%TOTAL student = 80No of also failed student = 10% of 80 = 10/100 x 80 = 8Student promoted to class = 100% - 10% = 90%Total number of also student = 90% of 80 = 90/100 x 80 = 72Extra student promoted to class 8 = 25%student failed = 8Total number of also student = 25% of 8 = 25/100 x 4 = 1Number of student PASSED = 72No. of student passed in another school = 1Total student promoted to class 8 = 72 + 1 = 73 |
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