Christmas MT's answer to dh's Primary 5 Maths Rate & Ratio question.
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If it takes 45minutes to paint 5 walls, it will take another 45 minutes to paint the next 5 walls. Therefore it will take 45 x 4 =180 minutes to paint all the walls since there will be 4 rows of 5 walls =20 walls total
Date Posted:
6 years ago
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