Wednesday, March 17, 2010

Chap 4: Algebra Puzzle...

3 flowers = 30
1 flower = 10
16 = 1 flower + 2 pens
2 pens = 16 - 10 = 6
1 pen = 6 / 2
26 = 2 pens + 1 umbrella
1 umbrella = 26 - 6 =20

So, 1 umbrella = 20, 1 pen = 3 and 1 flower = 10 C = cars F = feathers P = pens

59 = 2F + 1P
78 = 2F + 2P
1P = 78 - 59 = 19
2F = 59 - 19 = 40
1F = 40/2 = 20
1C = 51 - 20 - 19 = 12

So, 1 car = 12, 1 feather = 20 and 1 pen = 19

Friday, March 12, 2010

S&W test

video
video