Hi, MeiYee. See the image for details. I have put Hint 1 as the key information to solve for the number of chickens. :)
What difficulty did you have with this question?
6 years ago
MeiYee Leong
How to get the sold portion?
6 years ago
Anand Liverpudlian
Find the 1u=? Then u can equate 1u plus the sold to 160 and get the answer.
6 years ago
MeiYee Leong
Thanks Anand. Appreciated.
6 years ago
Hwee Koon
I notice if it's the SAME number sold/bought/eaten, it's easier to label it in front of the model.
Haha.... surprised to see u here. Guess u must be those helping parents like me.
6 years ago
Kelly Thong
I help when I can. I don't do all questions
6 years ago
Tey Pei Ling
6 years ago
Evelyn Tan
Thank you!
6 years ago
Tey Pei Ling
Welcome
6 years ago
Eljenia Koh
1
6 years ago
Jason Oon
6 years ago
Evelyn Tan
Thanks all. Got the answer!
6 years ago
Evelyn Tan
Thank you!
6 years ago
Evelyn Tan
Haha.... surprised to see u here. Guess u must be those helping parents like me.
6 years ago
Tey Pei Ling
Welcome
6 years ago
Kelly Thong
I help when I can. I don't do all questions
6 years ago
Germaine Tan
Asked 9 years ago
SG
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Primary 3
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Number and Algebra
P3 math
Replies
3
Tey Pei Ling
6 years ago
Germaine Tan
Thanks
6 years ago
Tey Pei Ling
Welcome
6 years ago
Kathleen Tan
Asked 9 years ago
SG
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Primary 5
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Geometry
We've found x=60, but what is y?
Replies
5
Kathleen Tan
Figured out the answer (finally)
Essentially, we are told that DF bisects angle ADC. So angle FDC is 45° and angle DFC is 45° coz angle DCF is 90°. That makes triangle DCF an isoceles triangle so DC =FC. We also know that triangle EDC is an equilateral triangle with internal angles of 60° so ED=EC=DC. Since FC=DC, FC=EC, so triangle CEF is an isoceles triangle. Angle ECF is 30°(90-60) so angle y = (180-30)/2 =75°!
6 years ago
Hariani Salleh
What level is this?
6 years ago
Kathleen Tan
My son is in P4. This is from some joint math programme he attended. Dont think its from usual syllabus
6 years ago
Hariani Salleh
Thank you. The term "bisect" is not in primary math syllabus, that's why I wonder which level it's from. 😊
6 years ago
Kathleen Tan
Good to know! Thanks :)
6 years ago
Hariani Salleh
Thank you. The term "bisect" is not in primary math syllabus, that's why I wonder which level it's from. 😊
6 years ago
Kathleen Tan
Good to know! Thanks :)
6 years ago
Don Wee
Asked 9 years ago
SG
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Primary 3
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Number and Algebra