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primary 6 | Maths | Ratio
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Leow Wen Ze
Leow Wen Ze

primary 6 chevron_right Maths chevron_right Ratio chevron_right Singapore

Pls assist. Thx

Date Posted: 4 years ago
Views: 305

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AC Lim
Ac Lim's answer
12085 answers (A Helpful Person)
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Hope this help
Leow Wen Ze
Leow Wen Ze
4 years ago
Isn’t 3 men took 22 days?
AC Lim
AC Lim
4 years ago
3 men painted 3u for 1 block in 22days
2 men painted 2u for 1 block in 22days.
Notice 2 men only painted 2/3 of the block in 22 days.

Every 22 days painted 2/3 (2u of total 9u for 3block)

2u —-> 22 days
X4. X4
8u —-> 88 days
1u —-> 11 days
All 9u —-> 99 days