AC Lim's answer to Madmath's Primary 5 Maths Rate & Ratio Singapore question.

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AC Lim
Ac Lim's answer
13086 answers (A Helpful Person)
1st
a) Apple after sold 60% = 3 × 40% = 1.2
New ratio A : O
= 1.2 : 10
= 12 : 100
= 3 : 25