Tjoa A Em
Asked 9 years ago

SG chevron_right Primary 4 chevron_right Geometry

Replies 2
Shaoyang Brandon

Hi. Refer to the image below for an explanation. What an intriguing question that links angles with clock hands movements! :)

6 years ago
Tjoa A Em

Thanks for advice Shaoyang Brandon😊

6 years ago

Selena Cheung
Asked 9 years ago

SG chevron_right Secondary 3 chevron_right Geometry and Measurement

How to solve qt12

Replies 0

Adrian Ng
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

Making it visual...

Replies 0

Aaron Hee
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

Hi, I have the solution but couldn't understand it. So hopefully someone can offer an alternative solution ( assuming there is an explanation even if it's the same as the one I have). I am also not providing the answer to give an opportunity for those who would like to solve it. Thanks

Replies 6
KH Puah

6 years ago
Aaron Hee

Why is that you are able to add all the units for males from the 3 independent ratios together i.e 1+2+1=4?

6 years ago
Aaron Hee

I see that adding all the units for male and females respectively happens to give the equivalent ratio for the given total ratio, i.e 1:3. So it just fits, but why is it we can do that in the first place? Please help

6 years ago
Lim Choon Guan

6 years ago
KH Puah

First, I take it that the 3 ratio (1:3, 1: 2, and 1:5) are no related. But "school X had 6 fewer scholars than school Y" gives us the relationship between X and Y. Normalised, multiples, etc and make sure that ratio between X and Y are in syn. Next introduce Z's ratio and make sure X, Y, and Z total common ratio is 1:3, if not adjust only Z ratio. (in this case, it happens that no adjustment is required).

6 years ago
Aaron Hee

Tks

6 years ago

Judy Low
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Measurement

Find the unshaded area of the rectangle. Can someone kindly explain the method used? Thank you.

Replies 2
Shaoyang Brandon

Hi. Refer to image for why 17-5=12. :)

6 years ago
Judy Low

Ooooh! I see! Thanks, Shaoyang Brandon!

6 years ago

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