In two successive years 100 and 75 students of a school appeared at the final examination. Respectively 75% and 60% of them passed. The average rate of pass is |
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(a) |
68% |
(b) |
78% |
(c) |
80% |
(d) |
80 |
In two successive years 100 and 75 students of a school appeared at the final examination. Respectively 75% and 60% of them passed. The average rate of pass is |
|
|||||||
(a) |
68% |
(b) |
78% |
(c) |
80% |
(d) |
80 |
Total number of students = 100 + 75 =175.
Number of students passed = 75% of 100 + 60% of 75
= 75 + 45 = 120.
Pass percentage =