Tutor MathsGuru: Ask me for your burning Maths questions!

[YLH88]

Hi Maths Monster,


Thank you very much!!

[pineapple tarts]

Hi


There are 8 trees. The distance between each tree is 100m.
What is the distance between the first to the last tree?
Dunno why I can’t get the correct answer. Pls advice. Many thanks!

[adhdadhd]

pineapple tarts:

Hi


There are 8 trees. The distance between each tree is 100m.
What is the distance between the first to the last tree?
Dunno why I can't get the correct answer. Pls advice. Many thanks!

1st - 100m - 2nd - 100m - 3rd .... 8th

1st to 3rd tree 200m,..

1st to 8th tree should be 700m, right?

[Lynn1967]

talk_aboutstudies:

[quote]Is there a method where i can solve all speed questions like this:


A car and a van were travelling in opposite directions at speeds of 80km/h and 60km/h respectively. The car was travelling from Town A to Town B while the Van was travelling form Town B to Town A. At what time would the pass each other?


Note: No distance is given

Please help!

Time = Distance / (80 + 60) = Distance / 140

This is the same as assuming car speed is 140km/h and the time taken to travel from town A to B.[/quote]I understand this but what's the answer?

[Herbie]

Hi Pineapple,


Ans shld be 7x 100m= 700m

[Dharma]

Lynn1967:

talk_aboutstudies:

[quote]Is there a method where i can solve all speed questions like this:


A car and a van were travelling in opposite directions at speeds of 80km/h and 60km/h respectively. The car was travelling from Town A to Town B while the Van was travelling form Town B to Town A. At what time would the pass each other?


Note: No distance is given

Please help!

Time = Distance / (80 + 60) = Distance / 140

This is the same as assuming car speed is 140km/h and the time taken to travel from town A to B.

I understand this but what's the answer?[/quote]You’ll never be able to find out the meeting time of the car and van because the distance between the 2 towns is not given!

[pineapple tarts]

Herbie:

Hi Pineapple,


Ans shld be 7x 100m= 700m

That is also my answer but the teacher mark wrong w/o giving a solution. So I also dunno why & how to explain to my DD :?

[Lynn1967]

Dharma:

You’ll never be able to find out the meeting time of the car and van because the distance between the 2 towns is not given!

Huh?? So what is the purpose of this question then? :?

[NormalDistribution]

Perhaps the poster just wants to know the general method of solving such types of questions, and so did not specify the distance.

[peterch]

Please help me on this P4 math question.


Q:
3 Similar oven toasters and 4 similar kettles cost $120
2 such oven toasters and 1 such kettle cost $95
Find the cost of an oven toaster.


Thanks and sorry if this question ever been discussed earlier.

Regards