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 (May 2007)

### Hector C. Parr

***

#### SOLUTION TO LAST MONTH'S QUIZ

```   1.   14
2.   20
3.   8```

Notes.
```  Number who passed I but failed II = 50-22 = 28

So in the Venn Diagram, e+a = 28   -    (i)
Similarly  f+b = 44-34 = 10   -    (ii)
and  d+c = 80-34 = 46   -    (iii)
Also a+b+c+d+e+f+g = 100-2 = 98   -    (iv)

Add equations (i),(ii) and (iii) and subtract from (iv)
So g = 98-28-10-46 = 14

All remaining unknowns are then easily found,
in the following order:  f, d, e, a, b, c```

#### THIS MONTH'S QUIZ

ABCD is a square with sides of length 4 cm.
EB = FC = GD = HA = 1 cm.

Find the area of each red-shaded area, (1), (2) and (3).

***

© Hector C. Parr (2007)

Go to Quiz Archive