Danielle Chin Huey Ren's answer to Zeya's Primary 5 Maths Percentage Singapore question.
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First change the ratio to make it have a common total. Then, equate 21 yellow marbles to the ratio (final ratio minus the initial ratio of yellow marbles) . After that, find the initial number of yellow marbles.
Hope this answers your doubts for this question!
Hope this answers your doubts for this question!
Date Posted:
3 years ago
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