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primary 6 | Maths
| Fractions
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Date Posted: 5 years ago
Views: 338
Aaron increased his savings by 80%
So 100% → 180%
180% → $630
1% → $630 ÷ 180 = $3.50
100% → $3.50 x 100 = $350
Brian decreased his savings by 50%
So 100% → 50%
50% → $630
So 100% → $630 x 2 = $1260
Notice that when Calvin gave David 1/5 of his savings, their total amount of $ stays unchanged. so their total is $630 x 2 = $1260
Total savings the four children had at first
= $1260 + $1260 + $350
=$2870
So 100% → 180%
180% → $630
1% → $630 ÷ 180 = $3.50
100% → $3.50 x 100 = $350
Brian decreased his savings by 50%
So 100% → 50%
50% → $630
So 100% → $630 x 2 = $1260
Notice that when Calvin gave David 1/5 of his savings, their total amount of $ stays unchanged. so their total is $630 x 2 = $1260
Total savings the four children had at first
= $1260 + $1260 + $350
=$2870
See 1 Answer
done
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Percentage and model method.
Date Posted:
5 years ago
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