Q&A - P4 Math

[BigDevil]

Eugene can advance 6m in 8 sec, so 12m in 16 sec.

Then he falls back 2m after 1 sec rest.
Nett, he advances 10m in 17 sec.

It will therefore take him 9 x 17 = 153 sec to reach the 90m mark.

From the 90m mark, he will need another 12m (ie. 16 sec) to reach point B.
153 + 16 = 169 seconds

[vsk]

Thank you very much Bigdevil :rahrah: :thankyou: :thankyou:

[Jamesbond]

http://i46.tinypic.com/2zyxws6.jpg\">

So difficult.....Pl help...

[Just4Good]

Earlier post was incorrect. Sorry.


White Triangles: 1+2+3+4…+100= 5050
Black Triangles: 1+2+3+4…+99= 4950 ( Gauss Theorem )
Total: 4950 + 5050 = 10000
4950/10000 = 99/200

Hence, answer is 2.

[Jamesbond]

This one is quite new for me…Does P4 apply this? I shall try to understand…Thank you.

[Jamesbond]

http://i45.tinypic.com/1z5iwyb.jpg\">

Pl solve this for me........

[Just4Good]

Jamesbond:

http://i45.tinypic.com/1z5iwyb.jpg\">

Pl solve this for me........

Cannot solve it. :oops:

Are you missing anything? The picture is unclear.

[Jamesbond]

Jamesbond:

http://i45.tinypic.com/1z5iwyb.jpg\">

Pl solve this for me........

:? I also felt the same....

[smartmummy]

Pls help me!

Malek and Wahab had 525 marbles.1/6 of Malek’s marbles and 4/11of Wahab’s marbles were blue in colour.The rest were red in colour.If they had equal number of blue marbles,how many red marbles did Wahab have?

[verykiasumummy]

smartmummy:

Pls help me!

Malek and Wahab had 525 marbles.1/6 of Malek's marbles and 4/11of Wahab's marbles were blue in colour.The rest were red in colour.If they had equal number of blue marbles,how many red marbles did Wahab have?

i think i can help..

since 1 unit of Malek is equal to 4 units of Wahab, therefore :

Malek should have 6x4=24u
Wahab has 11u

24u + 11u = 35u
35u --> 525
1u --> 15

11u - 4u = 7u (Waleb's red)

7u --> 105 (Ans)

hope it helps..


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