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primary 5 | Maths | Rate & Ratio
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Syaizah Selamat
Syaizah Selamat

primary 5 chevron_right Maths chevron_right Rate & Ratio chevron_right Singapore

I'm confused. Need help with steps to understand better.

Date Posted: 3 years ago
Views: 248
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Jia Suan
Jia Suan's answer
12 answers (A Helpful Person)
1st
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Syaizah Selamat
Syaizah Selamat
3 years ago
Thank you
adults: children
9:7 (total units= 16)

total no. of people: 20160
16u -> 20160
1u -> 1260
7u->8820


total no. of children= 8820

let no. of girls be 1unit.
boys: 1u + 160
girls: 1 u

8820-160 = 8660
2u-> 8660
1u-> 4330

no. of boys= 1u+160
= 4330+160
= 4490
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Sherming
Sherming's answer
16 answers (A Helpful Person)
Syaizah Selamat
Syaizah Selamat
3 years ago
Thank you