Tutor MathsGuru: Ask me for your burning Maths questions!

[powforhighschool]

I got the answer to the 2nd question as the 46th caller, can you explain how you got the 45th caller Muffins?

[iFruit]

powforhighschool:

1.the average cost of a 1990 car depreciates linearly, so that in 1993, the average cost of the car was $14,500 and in 1995 the average cost of the car was $12,700. Let y represent the year and c represent the aerage cost of the car in a linear function. Determine the anticipated cost of the sports car in 1996.


2. A local radio station is holding a contest to give away cash. THe announcer makes a telephone call, and if the person who answers guesses the correct amount of money to be given away, he or she wins the money. If the person misses, $20 is added to the jackpot. At the beginning of the 5th call, the jackpot was $240. On what call could the winner receive $1060

1) Depreciation per year = (14500 - 12700)/2 = 1800/2 = 900

Cost of car in 1996 = cost of car in 1995 - depreciation = 12700 - 900 = 11800

2) 1060 = 240 + (n-5)20

820/20 = n-5

n = 46.

On 46th call, the winner could receive $1060.

[tiger262]

This thread has benefitted so many PSLE students and parents. It will be most useful if such a thread continues to support Sec-1 Maths also.


I am sure all those who wrote PSLE this year will be glad to have such a thread next year also, as they pursue Sec-1. Does it already exist in this forum? Or will anyone be kind enough to start such a ‘Sec-1 thread’ soon?

Thanks and regards.

[Muffins]

hi tiger262, there is a lready one


http://www.kiasuparents.com/kiasu/forum/viewtopic.php?t=8315&start=50

[tiger262]

Muffins:

hi tiger262, there is a lready one


http://www.kiasuparents.com/kiasu/forum/viewtopic.php?t=8315&start=50

Thank you very much Muffins.

I think something should be done to make that thread come alive. Hope next year it will blossom with more active participation from both parents and Sec-1 students.

[Muffins]

yah. i'm cruising around there as well

[mummyoftwo]

tiger262:

This thread has benefitted so many PSLE students and parents. It will be most useful if such a thread continues to support Sec-1 Maths also.


I am sure all those who wrote PSLE this year will be glad to have such a thread next year also, as they pursue Sec-1. Does it already exist in this forum? Or will anyone be kind enough to start such a 'Sec-1 thread' soon?

Thanks and regards.

It will be nice to classified these Maths questions into level so that it will easily visable for all as I am going through every pages to find the right questions for my P4 kid.

Thanks

[peggy]

Help for my P4 please !


Kelly and Michelle bought 15 packs of cards altogether. There were 167 cards in each pack. If Kelly were to give Michelle 1243 cards, Michelle would have 4 times as many cards as she had. How many cards did Michelle have at first?

Thanks!

[iFruit]

peggy:

Help for my P4 please !


Kelly and Michelle bought 15 packs of cards altogether. There were 167 cards in each pack. If Kelly were to give Michelle 1243 cards, Michelle would have 4 times as many cards as she had. How many cards did Michelle have at first?

Thanks!

At the end,

Let Kelly = u
Michelle = 4u

u+4u = 15x167---> u = 3x167=501

Michelle in the beginning = 4x501 -1243 = 761

HTH

[peggy]

Thanks! Got it.