Nathaniel's answer to Freda's Primary 6 Maths Singapore question.

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Nathaniel
Nathaniel's answer
30 answers (Tutor Details)
Another trial n error
Basically every time you increase blue , your red increase in proportion to the blue.
And blue have to be in multiples of 5
So eg. I started with 35 -- 5*7
So red should be -- 2 × 7 = 14

And so on n so fore, if you dont understand , feel free to comment