Q&A - P3 Math

[veraclari]

Thanks peapot, plum-cake

[plum-cake]

veraclari:

Thanks peapot, plum-cake

Hi
CRAZYBANANA 's answer is correct, I just draw the model for that.

[HAPPYH]

Hi


I wanted to upload a model disgram. It keeps saying that we can load upto 600 pixels only. How do I reduce the size???

Thank you in advance

[HAPPYH]

http://i43.tinypic.com/2qiqq6r.gif\">


13 X 7 = 91
283 – 91 = 192
192/8 = 24 (1 unit)
24 + 13 = 37 (Tara = 1 unit + 13)

Tara collected 37 cans.

Hope this helps.

kiasu2008:

Hi Parents,

Can help me to solve this question.

Sam, Tara and Xing Yi collected cans for recycling. Sam collected six times as many as Tara. Tara collected 13 cans more than Xing Yi. If they collected a total of 283 cans, how many cans did Tara collected ?

[kiasu2008]

Thanks. Parents.


I have another question :

On a farm there are an equal number of chickens and sheep. if there are a total of 1008 legs, how many sheep are there ?

[HAPPYH]

kiasu2008:

Thanks. Parents.


I have another question :

On a farm there are an equal number of chickens and sheep. if there are a total of 1008 legs, how many sheep are there ?

2 + 4 = 6 legs

1008/6 = 168

168 sheep and 168 chickens.

Hope my answer is correct.

[Applelyn1]

Need help on this


when my father wa 39, I was 9. now he is twice as old as I am. How old am I?

Thank you in advance.

[alan000]

Dear Applelyn1,


Age difference remains the same.

In this case, 39 - 9 = 30

When the father is twice as old, the father is 2 units and the son is 1 unit.

The difference -> 2u - 1u = 1u

As difference in age always remains the same,
1u -> 30

Therefore, the son is 30 yrs old now.

To find the current age of the father, find 2u.

That is, 2u x 30 -> 60

The father is 60 years old.

Hope this helps.

Mrs Alan

[MathIzzzFun]

Applelyn1:

Need help on this


when my father wa 39, I was 9. now he is twice as old as I am. How old am I?

Thank you in advance.

Hi

Age difference or age gap will always remain the same - this is the most important fact for questions on age.

age gap --> 39 - 9 = 30 = my present age (since father is twice as old, present age = age gap....draw a model --> easier to see with a model)

cheers.

[Applelyn1]

Thanks Mrs Alan, I got the same answer too, wondered why teacher gave answer as 39?

alan000:

Dear Applelyn1,


Age difference remains the same.

In this case, 39 - 9 = 30

When the father is twice as old, the father is 2 units and the son is 1 unit.

The difference -> 2u - 1u = 1u

As difference in age always remains the same,
1u -> 30

Therefore, the son is 30 yrs old now.

Hi Alan

Thanks, I got the same answer too, I wondered why the school teacher gave answer as 39?


To find the current age of the father, find 2u.

That is, 2u x 30 -> 60

The father is 60 years old.

Hope this helps.

Mrs Alan