J's answer to Fuzzy's Primary 5 Maths Whole Numbers Singapore question.
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Easy.
12 fewer rows means that the pots in those 12 rows were shifted. They were used to add to some of the existing rows to become 16 pots per row.
12 × 13 = 156
So 156 pots were rearranged.
Number of pots added to each of those rows = 16 - 13 = 3
Number of rows which had pots added = 156 ÷ 3 = 52
Number of potted plants = 52 × 16 = 832
Or
Number of potted plants = 13 × (12 + 52) = 13 × 64 = 832
12 fewer rows means that the pots in those 12 rows were shifted. They were used to add to some of the existing rows to become 16 pots per row.
12 × 13 = 156
So 156 pots were rearranged.
Number of pots added to each of those rows = 16 - 13 = 3
Number of rows which had pots added = 156 ÷ 3 = 52
Number of potted plants = 52 × 16 = 832
Or
Number of potted plants = 13 × (12 + 52) = 13 × 64 = 832
Date Posted:
3 years ago
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