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Question
primary 6 | Maths
| Percentage
2 Answers Below
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Hi . Is it add 70% + $80% = 282 ?
Date Posted: 3 years ago
Views: 437
10% failed. Therefore, 90% passed ...
From there, 70%+80% of students, total = 90%, meaning to say, some students passed both sci and math.. ie.. 60%
From there, 70%+80% of students, total = 90%, meaning to say, some students passed both sci and math.. ie.. 60%
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done
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clear
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Hope this helps
Date Posted:
3 years ago
Thank you ❤ this help .⚘⚘⚘ me better understanding
I like this chart method but I don't know how to figure it myself when I'm trying out . Thank anyway for sharing. I will try again
If you move the whole blue parts left for 1 unit
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
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
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