Q&A - P4 Math

[Jamesbond]

doraemo:

hi, please help......3 questions.


1)Arrange 7 dots in such a way that you can draw straight lines through 6 sets of 3 dots.

2) Mr Tang had 4 boxes filled with an equal number of chocolate bars in each one. He emptied them into a tray and added 2 more bars to them.
Later he filled up 2 of the same boxes, leaving 44 bars on the tray. How many chocolate bars did each box have.

3) Colour exactly half the large square so that the coloured half is still a square.

For the second question my DS answer is

44-2=42
42/2=21-----which is 1 box.

[doraemo]

Thank you!!!

[doraemo]

anyone…please help…


1)Arrange 7 dots in such a way that you can draw straight lines through 6 sets of 3 dots.

2)Colour exactly half the large square so that the coloured half is still a square.

[dazzlego]

doraemo:

anyone..please help..


1)Arrange 7 dots in such a way that you can draw straight lines through 6 sets of 3 dots.

2)Colour exactly half the large square so that the coloured half is still a square.

Just give a rough pictures of the answers
1. 7 dots are on the equilateral triangle (3 at the vertices, 3 at the midpoints of the sides, 1 in the centre)
2. connect the midpoints of the sides of the square
http://i46.tinypic.com/iwohv6.jpg\">

Hope it helps
Cheers :celebrate:

[BigDevil]

MathIzzzFun:

Gold:

Hi,


Please help with the question below:-
In a class, 2/5 of the pupils liked golf and 7/9 of the remaining pupils liked tennis. The rest of the pupils liked soccer, how many pupils were there in the class altogether?

Thanks.

Smallest class size is 45 - class size must be a multiple of 5 & 9

cheers.

Can provide workings?
The answer must be multiples of 5 & 9? I thought 60 is also a possible answer?

[Nebbermind]

BigDevil:

MathIzzzFun:

[quote=\"Gold\"]Hi,


Please help with the question below:-
In a class, 2/5 of the pupils liked golf and 7/9 of the remaining pupils liked tennis. The rest of the pupils liked soccer, how many pupils were there in the class altogether?

Thanks.

Smallest class size is 45 - class size must be a multiple of 5 & 9

cheers.

Can provide workings?
The answer must be multiples of 5 & 9? I thought 60 is also a possible answer?[/quote]15 also, right?

2/5 = 6, R9
7/9 = 7, R2

[dazzlego]

BigDevil:

MathIzzzFun:

[quote=\"Gold\"]Hi,


Please help with the question below:-
In a class, 2/5 of the pupils liked golf and 7/9 of the remaining pupils liked tennis. The rest of the pupils liked soccer, how many pupils were there in the class altogether?

Thanks.

Smallest class size is 45 - class size must be a multiple of 5 & 9

cheers.

Can provide workings?
The answer must be multiples of 5 & 9? I thought 60 is also a possible answer?[/quote]YEAH! the smallest class size is not 45. It is 15!
Work using model and u can find out that the number of pupils who like:
GOLF --> 6 units
TENNIS --> 7 units
SOCCER --> 2 units
TOTAL --> 15 units
Whatever is the question, solve it with this

CHeers :celebrate:

[BigDevil]

Ah! So the possible answers are not multiples of both 5 AND 9, but multiples of 15.

[SarChar]

BigDevil:

Ah! So the possible answers are not multiples of both 5 AND 9, but multiples of 15.

so difficult... :xedfingers: hope not my DD1's exam questions.

[dazzlego]

BigDevil:

Ah! So the possible answers are not multiples of both 5 AND 9, but multiples of 15.

Yup it is multiple of 15

SarChar:

so difficult... :xedfingers: hope not my DD1's exam questions.

And it is not difficult. Coz DD is used to draw model isn't she?
Sometimes they all are better than us when it comes to model questions, I dunno why