Alfred Lau's answer to Elly's Secondary 1 Maths Singapore question.
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- For Q25a, the question is actually asking for the LCM (Lowest common multiple) of 70, 56 and 84, since that is the way to find the next set of blue objects
- For Q25b, the question requires the number of lamp posts between 2 sets of blue objects, meaning the lamp post that was painted blue is not counted. So the final answer is
12-1=11 lamp posts
- For Q25b, the question requires the number of lamp posts between 2 sets of blue objects, meaning the lamp post that was painted blue is not counted. So the final answer is
12-1=11 lamp posts
Date Posted:
4 years ago
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