Q&A - P4 Math
-
Sharmum:
Let me try...Hi,
Appreciate if someone can help on this one:-
Kelvin and Ron had $135 altogether. After kelvin spent 2/5 of his money and Ron spent $79, they had an equal amount of money left. How much did Kelvin have at first?
Thank you.
135 - 79 = 56
56 / 8 = 7
7 * 5 = 35
Ans - $35... -
![](\"http://i49.tinypic.com/2vb8y2s.jpg\")
http://i49.tinypic.com/2vb8y2s.jpg\">
Pl help. -
Jamesbond:
Area of floor = 25 x 20 = 500
Pl help.
Area of a tile = 5 x 4 = 20
No. Of tiles = 500/20 = 25 -
kwcllf:
:thankyou:
Area of floor = 25 x 20 = 500Jamesbond:
Pl help.
Area of a tile = 5 x 4 = 20
No. Of tiles = 500/20 = 25 -
![](\"http://i45.tinypic.com/11cf4uh.jpg\")
Pl help me do (b) question. Is there any strategy for solving such questions. -
Jamesbond:
Fig 1 - 1x1=1
Pl help me do (b) question. Is there any strategy for solving such questions.
Fig 2 - 2x2=4
Fig 3 - 3x3=9
Fig 4 - 4x4=16
Fig 50 - 50x50=2500 -
kwcllf:
I think it's
Area of floor = 25 x 20 = 500Jamesbond:
Pl help.
Area of a tile = 5 x 4 = 20
No. Of tiles = 500/20 = 25
Area of floor = 500 X 400 (cm)
Area of tile = 25 X 20 (cm)
No. Of tiles = 500 X 400
------------
25 X 20
= 400 -
No. Of tile = (500 X 400) / (25 X 20) = 400
-
mowmow:
I thought
Fig 1 - 1x1=1Jamesbond:
Pl help me do (b) question. Is there any strategy for solving such questions.
Fig 2 - 2x2=4
Fig 3 - 3x3=9
Fig 4 - 4x4=16
Fig 50 - 50x50=2500
Fig 1 - 1 tile
Fig 2 - 1 + 3 = 4
Fig 3 - 1 + 3 + 5 = 9
Fig 4 - 1 + 3 + 5 + 7 = 16
Fig 5 - 1 + 3 + 5 + 7 + 9 = 25
But I like MowMow's method more
-
Jamesbond:
Sharmum:
Hi,
Appreciate if someone can help on this one:-
Kelvin and Ron had $135 altogether. After kelvin spent 2/5 of his money and Ron spent $79, they had an equal amount of money left. How much did Kelvin have at first?
Let me try...
135 - 79 = 56
56 / 8 = 7
7 * 5 = 35
Ans - $35...
:thankyou:
Hello! It looks like you're interested in this conversation, but you don't have an account yet.
Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.
With your input, this post could be even better š
Register Login