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junior college 1 | H2 Maths
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Elaine
Elaine

junior college 1 chevron_right H2 Maths chevron_right Singapore

Help with (ii) please!

Date Posted: 4 years ago
Views: 299

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Boy Mow Chau
Boy Mow Chau's answer
316 answers (Tutor Details)
1st
when unsure of method of calculation …

test the method with a smaller problem of more manageable size.
list out all the possible arrangements for the smaller problem.

if no. of possible arrangements matches calculated answer, then method most likely is correct.

apply same method to the larger problem.