Tutor MathsGuru: Ask me for your burning Maths questions!
-
Hi
Thanks for helping to solve below questions.
1) The ratio of John’s age to his uncle’s age is 1:4. In 30 years’ time, the ratio will become 2:3. How old is John now?
2) The salary of Mr Lim and Mr Tan was in the ratio 3:5. After they gave away an equal amount of $3500 to their wives, the ratio became 1:4. What was Mr Lim’s salary? -
Hi
Hope this helps.![](\"http://farm5.static.flickr.com/4002/4375904850_1a606a0e6e_o.jpg\")
http://farm5.static.flickr.com/4002/4375904850_1a606a0e6e_o.jpg\">
As for Q2, the salary difference remains the same.You may want to try it out first.
Best wishes -
Much appreciate if anyone online now can help me with this question.
No need nice diagram, I am having a brainblock and can’t work out how to cut the units ! Thanks in advance :
Kamala had 5026g of flour in a bag. She bought another packet of flour of mass 4157g. She transferred some flour from the packet to the bag. The mass of the flour in the bag became twice the mass of the flour left in the packet. How much flour was in the packet in the end ? -
cafelatte:
Total mass of flour = 5026 + 4157 = 9183gMuch appreciate if anyone online now can help me with this question.
No need nice diagram, I am having a brainblock and can't work out how to cut the units ! Thanks in advance :
Kamala had 5026g of flour in a bag. She bought another packet of flour of mass 4157g. She transferred some flour from the packet to the bag. The mass of the flour in the bag became twice the mass of the flour left in the packet. How much flour was in the packet in the end ?
Bag : Packet is 2:1
So packet has 1/3 of the total mass = 1/3 x 9183 = 3061g -
cafelatte:
I used algebra.Much appreciate if anyone online now can help me with this question.
No need nice diagram, I am having a brainblock and can't work out how to cut the units ! Thanks in advance :
Kamala had 5026g of flour in a bag. She bought another packet of flour of mass 4157g. She transferred some flour from the packet to the bag. The mass of the flour in the bag became twice the mass of the flour left in the packet. How much flour was in the packet in the end ?
Flour left in the packet is 3061g.
5026+ X = 2(4157 - X)
3x = 3288
x = 1096
what's left in the packet is 4157 - 1096 = 3061g
Can somehow use algebra and turn into model or not :lol: ? -
BigDevil:
Beautiful!!
Total mass of flour = 5026 + 4157 = 9183gcafelatte:
Much appreciate if anyone online now can help me with this question.
No need nice diagram, I am having a brainblock and can't work out how to cut the units ! Thanks in advance :
Kamala had 5026g of flour in a bag. She bought another packet of flour of mass 4157g. She transferred some flour from the packet to the bag. The mass of the flour in the bag became twice the mass of the flour left in the packet. How much flour was in the packet in the end ?
Bag : Packet is 2:1
So packet has 1/3 of the total mass = 1/3 x 9183 = 3061g -
WAH!!! :oops: Thank you Big Devil !
Somehow I kept thinking about how to cut the units ! :stupid:
Blobbi, thank you too! -
Blobbi:
Beautiful!![/quote]Glad you like it.
Total mass of flour = 5026 + 4157 = 9183gBigDevil:
[quote=\"cafelatte\"]Much appreciate if anyone online now can help me with this question.
No need nice diagram, I am having a brainblock and can't work out how to cut the units ! Thanks in advance :
Kamala had 5026g of flour in a bag. She bought another packet of flour of mass 4157g. She transferred some flour from the packet to the bag. The mass of the flour in the bag became twice the mass of the flour left in the packet. How much flour was in the packet in the end ?
Bag : Packet is 2:1
So packet has 1/3 of the total mass = 1/3 x 9183 = 3061g
-
cafelatte:
You are very welcome.WAH!!! :oops: Thank you Big Devil !
Somehow I kept thinking about how to cut the units ! :stupid:
Blobbi, thank you too!
-
tianzhu:
Hi
Hope this helps.
As for Q2, the salary difference remains the same.You may want to try it out first.
Best wishes
THANK YOU TIANZHU
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 💗
Register Login