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primary 6 | Maths | Data Analysis
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Opportunity
Opportunity

primary 6 chevron_right Maths chevron_right Data analysis chevron_right Singapore

Anyone Please help me . I think my answer is wrong .

Date Posted: 3 years ago
Views: 518
AC Lim
AC Lim
3 years ago
Answer = 9
Use difference on average and difference on mark.
The mark difference = 97-79 = 18
Average mark difference = 90 - 88 = 2
Therefore, number of test
= 18÷2
= 9 tests.
AC Lim
AC Lim
3 years ago
Think of mark donate as explained by @J previously.
Opportunity
Opportunity
3 years ago
Thank I got it. I don't know This also can use on marks donate. Thank again
Opportunity
Opportunity
3 years ago
Can we exchange number ?

See 3 Answers

Use difference on average and difference on mark.
The mark difference = 97-79 = 18
Average mark difference = 90 - 88 = 2
Therefore, number of test
= 18÷2
= 9 tests.
Hope this helps
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AC Lim
Ac Lim's answer
12417 answers (A Helpful Person)
Opportunity
Opportunity
3 years ago
It's help. Really help. And so easy to understand. Thanks
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Raine
Raine's answer
245 answers (A Helpful Person)
Hope this helps!
Opportunity
Opportunity
3 years ago
Thank you so much for your help. Hooray
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sstrike
Sstrike's answer
5371 answers (A Helpful Person)
1×(97-79)÷(90-88) = 9 (Ans)
Opportunity
Opportunity
3 years ago
It's so easy to understand with chart. Thank and help alot ⚘⚘⚘⚘
sstrike
Sstrike
3 years ago
Welcome
Opportunity
Opportunity
3 years ago
Cheers
sstrike
Sstrike
4 months ago
same question type
https://ask.manytutors.com/questions/144230