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junior college 1 | H1 Maths
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QN

junior college 1 chevron_right H1 Maths chevron_right Singapore

Need help for (a) and (b)

Date Posted: 4 years ago
Views: 303

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Tham KY
Tham Ky's answer
6052 answers (Tutor Details)
must verify...
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QN
Qn's answer
19 answers (A Helpful Person)
a(iii)
Tham KY
Tham KY
4 years ago
I got the same answer if I add permutation... See my new attached photo... Maybe you verify with your teacher...
Tham KY
Tham KY
4 years ago
You don't have to list all possible combination, just do the permutation formula: 5!/(2!3!)= 10
QN
QN
4 years ago
It should be an error with the answer sheet, thanks for clarifying
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Tham KY
Tham Ky's answer
6052 answers (Tutor Details)
Correction in green...