AC Lim's answer to O help's Primary 6 Maths Measurement Singapore question.
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Need more worker if less days given and less workers if more days given. Hope this helps
Date Posted:
11 months ago
Thanks
1 worker can clean 1 part in 1 day.
60 workers can clean 60 parts in 1 day.
So, 60 workers take 12 days to complete.
Then now,
30 days
1 worker clean 1 part in 1 day.
1 worker clean 30 parts in 30 days.
30 parts → 1 worker
720 parts = 720÷ 30 = 24 workers.