AC Lim's answer to hutu's Primary 6 Maths Data Analysis Singapore question.
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Hope this helps.
Date Posted:
1 year ago
Thank u teacher, can explain why it become 19 instead of 20?
Cause the photograph hanged between the wall... See last photo, 9cm gaps to the wall.
Check...
450cm ÷ 15 cm = 30 flags
450cm ÷ 9 cm = 50 photos
Last 9cm without photo
So 49 photos
Therefore, there is 19 more flags than photos.
|.........■.........■.........■_____■..........|
9cm,,,,,,,9cm,,,,,9cm,,,,,,,,,,,,,,,,,9cm
Check...
450cm ÷ 15 cm = 30 flags
450cm ÷ 9 cm = 50 photos
Last 9cm without photo
So 49 photos
Therefore, there is 19 more flags than photos.
|.........■.........■.........■_____■..........|
9cm,,,,,,,9cm,,,,,9cm,,,,,,,,,,,,,,,,,9cm
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