Q&A - P3 Math

[PapayaDad]

where is Peter?

[peggy]

sorry, sorry. I mean "How old is David now"?

[Oldschool]

peggy:

Please help with this.


4 years ago, David's age was twice of Ben's age.
Ben is 5 years younger than David now.
How old is Peter now ?

Thank you.

Hi

http://i42.tinypic.com/5nvrpc.jpg\">

Regards

[peggy]

Thanks oldschool!

[pinball]

Can someone show me how to solve the following question using the model.


Mrs Lee bought 35 blue and red hair clips. She then packed them equally into 5 packets. If there are 3 more pink clips than blue clips in each packet, how many blue clips are there in each packet?

Thanks

[pinball]

thank you quekcc

quekcc:

pinball:

Can someone show me how to solve the following question using the model.

Mrs Lee bought 35 blue and red hair clips. She then packed them equally into 5 packets. If there are 3 more pink clips than blue clips in each packet, how many blue clips are there in each packet?

Thanks

First, each packet will have 35/5 = 7 clips.

Now draw model, draw 1 unit block to represent blue clips, and then the same unit block with another block of 3 clips to represent pink clips.

As total is 7 clips, so the 2 unit block will be 7 - 3 = 4 clips.

Finally, 1 unit block = 4/2 = 2 clips.

Ans: 2 blue clips in each packet.

[jolenekoh]

Appreciate for the help


Fiona and Elaine had 156 bookmarks. Elaine and Gregory had 204 bookmarks Gregory and Fiona had 248 bookmarks. How many bookmarks did the 3 of them have altogether?

[Oldschool]

jolenekoh:

Appreciate for the help


Fiona and Elaine had 156 bookmarks. Elaine and Gregory had 204 bookmarks Gregory and Fiona had 248 bookmarks. How many bookmarks did the 3 of them have altogether?

Hi,

F+E=156
E+G=204
G+F=248

2(E+F+G)=608
E+F+G= 304

Regards

[jolenekoh]

Thank you Oldschool

Oldschool:

jolenekoh:

Appreciate for the help

Fiona and Elaine had 156 bookmarks. Elaine and Gregory had 204 bookmarks Gregory and Fiona had 248 bookmarks. How many bookmarks did the 3 of them have altogether?

Hi,

F+E=156
E+G=204
G+F=248

2(E+F+G)=608
E+F+G= 304

Regards

[sembgal]

jolenekoh:

Appreciate for the help


Fiona and Elaine had 156 bookmarks. Elaine and Gregory had 204 bookmarks Gregory and Fiona had 248 bookmarks. How many bookmarks did the 3 of them have altogether?

Difference between Fiona and Gregory =204 - 156 = 48
248 - 48= 200
200/2 = 100 (Fiona)
156 - 100 = 56 (Elaine)
204 - 56 = 148 (Gregory)
Total = 100 + 56 + 148 = 304