Sunday, March 1, 2020

Badly worded Question 8 x 8 grid dice question


An 8 sided die is rolled, and added to a second 8 sided die being rolled. List the sample space of summed results.

Answer 15.

The sample space of results is 64.

Math circuit problem for Jan and Jill





Jan and Jill on a circular track. Jill does a circuit every 72 seconds. Jan, going in the opposite direction, meets Jill every 56 seconds.

Answer 122.8 seconds

Wednesday, October 9, 2019

Math Methods Probability matrix answer

I've not seen this method before, but it works, simply for e and f

Saturday, September 7, 2019

Specialist Question Density Function Variance

Answers

Victorian year 12 VCE
Mr Mak's answer

Wednesday, February 6, 2019

Vic yr 11 specialist pipes q


Bad notes
The two pipes fill tank in 11 and two ninths minutes

On Quora
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Answer .. text book was right .. 21 and 16 min, approx


Cask wine question involving mixing Vic year 11 Specialist


Bad notes
Quora spot


Repeated Monash Selective test Q 30 seconds year 7

The question is given to year 7 students seeking selective schooling entrance in Victoria. Only 5% of applicants succeed. They have approximately 30 seconds for an answer. The official answer of 28 (B) seems explicitly wrong, seeing as it assumes (if correct) that the separate interval links marked differently are equal.

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