HOME

TREATISE:
. Quantum
Nodal Theory

ROMALDKIRK:
. Village
. Reservoirs

ESSAYS: COSMOLOGY
. Infinity
. Universe
. Dark Matter

ESSAYS: PHILOSOPHY
. Free Will
. Representation
. Conditionals
. Postscript

ESSAYS: ORGAN MUSIC
. Practising
. British Organs
. Hymn Playing
. Music Lovers

QUIZ QUESTIONS
. Quiz Archive

SERVICES
. Book Reviews

Quiz of the Month (December 2006)

Hector C. Parr

***

SOLUTION TO LAST MONTH'S QUIZ

```  1.  1/6 ft3
2.  1/3 ft3
3.  1.155 ft```

Notes.
```  1. Taking EFH as base and A as vertex,
Volume = 1/3 * 1/2 * 1 = 1/6

2. Volume of remainder = 1 - 4 * 1/6 = 1/3

3. AFH is an equilateral triangle with sides sqr(2)
So area AFH = ... = sqr(3)/2

Taking AFH as base and CP as height,
Volume = 1/3 * sqr(3)/2 * CP
So 1/3 = 1/3 * sqr(3)/2 * CP
So CP = 2/sqr(3)```

THIS MONTH'S QUIZ

```  There are seven ways of dividing four people, A, B, C and D,
into two (non-empty) groups, namely:
1. (A)  (BCD)
2. (B)  (ACD)
3. (C)  (ABD)
4. (D)  (ABC)
5. (AB) (CD)
6. (AC) (BD)