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Question
primary 6 | Maths
| Percentage
2 Answers Below
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Hi . Is it add 70% + $80% = 282 ?
From there, 70%+80% of students, total = 90%, meaning to say, some students passed both sci and math.. ie.. 60%
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The failed for both will be 2 units → 20% failed for both, instead of 10%
So 7-1=6
6 units passed for both
Total → 10 units