AC Lim's answer to idk's Primary 5 Maths Decimals Singapore question.
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0.3m = 30cm
1 roll with 200cm can get 6 pieces of 30cm
(200/30= 6 pieces + balance 20cm waste)
6 pieces —> 1 roll
48 pieces —-> 8 roll
Another 2 pieces need another 1 roll.
Therefore, the least number of rolls of cloth that Sam needs to buy = 9 rolls.
Hope this helps
1 roll with 200cm can get 6 pieces of 30cm
(200/30= 6 pieces + balance 20cm waste)
6 pieces —> 1 roll
48 pieces —-> 8 roll
Another 2 pieces need another 1 roll.
Therefore, the least number of rolls of cloth that Sam needs to buy = 9 rolls.
Hope this helps
Date Posted:
5 years ago
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