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 (November 2007)

Hector C. Parr

***

SOLUTION TO LAST MONTH'S QUIZ

```  1.  11
2.  7
3.  20```

Notes.
``` 1.  A + 1 = 2(A - 5)
Solving, A = 11

2.  5(B - 1) = F - 1
4(B + 1) = F + 1
Solving, B = 7, F = 31

3.      C = D - x
C - x = D - y     (x years ago)
C - y = D/2       (y years ago)
C + D = 44

Solving, C = 20, D = 24, x = 4,  y = 8```

THIS MONTH'S QUIZ

1. A family has six members (including no twins, triplets, etc.) What is the probability that the two eldest members were both born on Fridays?

2. What is the probability that at least two members of the family were born on Fridays?

3. What is the probability that at least four of them were all born on the same day of the week (not necessarily Friday)?

***