Jocelin Chua
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Statistics

Replies 6
Maggie Lukes

The average is 4.8 for two chickens, so the sum of the two chickens is 2x4.8. Continue as the first question.

6 years ago
Jocelin Chua

But they said that one chicken is1.24kg heacier than the other one

6 years ago
Maggie Lukes

That's true, but the average of the two chickens is still 4.8 kg and the sum of the two chickens is still 2 x 4.8 = 9.6.

6 years ago
Jocelin Chua

Tqvm...got it.

6 years ago
Xavier Sng

If you consider that the difference between the masses of the two chicken is 1.24 kg, the heavier chicken must be half of 1.24kg above the average and the lighter chicken must be half of 1.24kg below the average.

6 years ago
Xavier Sng

4.8 kg + (1.24kg / 2) = 5.42 kg

6 years ago

Jocelin Chua
Asked 9 years ago

SG chevron_right chevron_right

Replies 1
Maggie Lukes

Sum = 2 x 5.20 + 3 x 4.80 (Remember the average is the sum of the prices divided by the number of books)

6 years ago

Yuen Wen
Asked 9 years ago

SG chevron_right Primary 6 chevron_right Number and Algebra

Help for 3@

Replies 2
Kimsa Katana

lol.Circle shape eh not square.

6 years ago
Yuen Wen

Thanks

6 years ago

Geraldine Koh
Asked 9 years ago

SG chevron_right Primary 6 chevron_right Number and Algebra

Hi, can someone please help? Thanks in adv.

Replies 11
Caleb Tey

6 years ago
Geraldine Koh

Thank you Caleb Tey

6 years ago
Izam Marwasi

Caleb Tey.. How do you derive the change for Mary is 0.6...? Thanks..

6 years ago
Caleb Tey

Peter had 3.6. He gained 1.8. 1.8 was split between Mary and John at 2 to 1.

6 years ago
Izam Marwasi

OK..got it Caleb Tey... Thanks.

6 years ago
Caleb Tey

I lazy to draw the model.

6 years ago
Izam Marwasi

But your method is good.. It eliminate mistakes... With models.. If not careful... Mistakes can be a plenty. Anyway thks.

6 years ago
Gek Poh

How to get position 1 answers in the 1st place?

6 years ago
Caleb Tey

Mary had 20percent more. So if John is 5u, Mary is 6u. Peter has 60percent of Mary so .6x6u

6 years ago
Gek Poh

Now understand it...can help to explain position 2 pl..

6 years ago
Xavier Sng

6 years ago

Geraldine Koh
Asked 9 years ago

SG chevron_right Primary 6 chevron_right Fractions

Hi, can someone please help? Thanks in adv!

Replies 0

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