Class X has 5 sections which have 40, 50, 50, 60 and 60 students, respectively. The pass percent of these sections are 80%, 76%, 64%, 65% and 70%, respectively. The pass percent of the entire class X (correct to two decimal places) is:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 70.38%
Calculations:
Total students in all the sections combined = 40 + 50 + 50 + 60 + 60 = 260
Passing percentage of each sections combined
⇒ 80% of 40 + 76% of 50 + 64% of 50 + 65% of 60 + 70% of 65
⇒ 32 + 38 + 32 + 39 + 42
⇒ 183
Required percentage = (183/260) × 100 = 70.38%