Tutor MathsGuru: Ask me for your burning Maths questions!

[Dharma]

clblinym:

Dharma:

[quote=\"clblinym\"]Please help me solve the following Question.


There is no answer because it was one of the 30 questions in NUSHS mathematical Olympiad this year. I guess it is $37, but no confident at all.

Thanks in advance.




Amy
http://www.postimage.org/image.php?v=PqNDwEi

$37 is the lowest amount of money Mr Tan
will needs to spend.

By spending
1) 1 set of (11 chocs + 9 candies) => $15
2) 2 sets of (7 chocs + 9 candies) => $11x 2 = $22

Total chocs = 11 + 14 = 25
Total candies = 9 + 18 = 27
Each student will get 1 piece of chocolate and 1 piece of candy.( 2 pieces of candy left for Mr Tan to enjoy)

Minimum Amt spent = $15 + $22 = $37

~~~~~~~~~~~~~~~~~~
Dear Dharma

Thank you so much for your great help. I really appreciate it.[/quote]No worries.

[Almighty]

Dharma:

Sorry Dharma,
Still confused...in problem it is not stated that Point P is the mid point of the circle. Then how can we assume?Still tht 80 X 2 is confusing me....Please explain

See if can understand this ... if Kumar jogged 80m when he & Clara jogged 1/2 the circumference of track; then he must have jogged 160m when he and Clara jogged the whole circumference of the track.
Underlying assumption is the speed of Kumar and Clara do not change.
http://www.postimage.org/image.php?v=PqPN0f9[/quote]

Ok ok.I got it..Its based on the Principle[excuse me for the typo error]
\"When K covers 80m =1/2 of the circumference is covered
so, ? = full circumference
ie.,(80 X 2) = 160m from the point of K's journey...
Thankyou Dharma, Onceagain for a very very patient reply...I drew the same diagram and tried to understand intially..but failed to get it..My apologies for bothering you toooooo much....

[Ngserene617]

Hi can someone help me to solve this question:

- Find the value of 60 divide 80 divide 5 x 4
thanks !

Almighty:

[quote=\"Dharma

Sorry Dharma,
Still confused...in problem it is not stated that Point P is the mid point of the circle. Then how can we assume?Still tht 80 X 2 is confusing me....Please explain

See if can understand this ... if Kumar jogged 80m when he & Clara jogged 1/2 the circumference of track; then he must have jogged 160m when he and Clara jogged the whole circumference of the track.
Underlying assumption is the speed of Kumar and Clara do not change.
http://www.postimage.org/image.php?v=PqPN0f9[/quote]

Ok ok.I got it..Its based on the Principal
\"When K covers 80m =1/2 of the circumference is covered
so, ? = full circumference
ie.,(80 X 2) = 160m from the point of K's journey...
Thankyou Dharma, Onceagain for a very very patient reply...I drew the same diagram and tried to understand intially..but failed to get it..My apologies for bothering you toooooo much....[/quote]

[Ngserene617]

1. Jane paid $580 for an oven after 20% discount in a sale. What was the original price of the oven?

[singmathstutor]

Ngserene617:

1. Jane paid $580 for an oven after 20% discount in a sale. What was the original price of the oven?

80% --> $580
100% --> 100x580/80
= $725

[Muffins]

yes, you are right Ngserene617, it is based on the principal of the school, not the principle!!! :lol: :rotflmao:

[DragonAxe]

Ngserene617:

1. Jane paid $580 for an oven after 20% discount in a sale. What was the original price of the oven?

5/4x$580 = 145x5 = 1450/2 = 1400/2 + 50/2 = 700+25 = 725

ANSWER : $725.

[Dharma]

Almighty:

[quote=\"Dharma


Sorry Dharma,
Still confused...in problem it is not stated that Point P is the mid point of the circle. Then how can we assume?Still tht 80 X 2 is confusing me....Please explain

See if can understand this ... if Kumar jogged 80m when he & Clara jogged 1/2 the circumference of track; then he must have jogged 160m when he and Clara jogged the whole circumference of the track.
Underlying assumption is the speed of Kumar and Clara do not change.
http://www.postimage.org/image.php?v=PqPN0f9[/quote]

Ok ok.I got it..Its based on the Principal
\"When K covers 80m =1/2 of the circumference is covered
so, ? = full circumference
ie.,(80 X 2) = 160m from the point of K's journey...
Thankyou Dharma, Onceagain for a very very patient reply...I drew the same diagram and tried to understand intially..but failed to get it..My apologies for bothering you toooooo much....[/quote]


For meeting problems; time taken us fixed provided Kumar and Clara leaves at the same time.

You can check as shown below ....

When they meet for the 1st time
Kumar : 80m (from M to P)
Clara : 100m (from N to P)
Total distance => 160m (1/2 of circumference)

When they meet for 2nd time
Kumar : 160m ( from P to Q - clockwise direction)
Clara : 200m (from P to Q - anti clockwise direction)
Total distance => 360m (Circumference)

[Almighty]

Dharma:

Almighty:

[quote=\"Dharma


For meeting problems; time taken us fixed provided Kumar and Clara leaves at the same time.

You can check as shown below ....

When they meet for the 1st time
Kumar : 80m (from M to P)
Clara : 100m (from N to P)
Total distance => 160m (1/2 of circumference)

When they meet for 2nd time
Kumar : 160m ( from P to Q - clockwise direction)
Clara : 200m (from P to Q - anti clockwise direction)
Total distance => 360m (Circumference)

Hi Sir,(Feel like calling you like this..You truly deserve much more respect ...)
Thank you Very much Dharma Sir...

[Almighty]

Muffins:

yes, you are right Ngserene617, it is based on the principal of the school, not the principle!!! :lol: :rotflmao:

Dear Muffins,

It was not Ngserene...But me who made the mistake.. My apologies for doing it..Edited rightly ...thanks for the info