Tuesday, March 15, 2011

Chapter 4: Algebra Puzzle






Let a represent the star
Let b represent the umbrella
Let c represent the ice-cream

3a= 42
so, a=42/3= 14
a=14

a+2b=34=14+2b=34
34-14=2b=20
so, b= 20/2=10

2a+c=36
(14x2)+c=36=28+c=36
36-28=c=8
c=8

Ans: a=14
b=10
c=8

Let a represent the Flower
Let b represent the Apple
Let c represent the Pen
3a=69
a=69/3=23

3a+b=80=(3x23)+b=69+b
80-3a=80-69=b=11

2a+c=49=(2x23)+c=46+c
49-2a=49-46=c=3

Ans: a= 23
b=11
c= 03

Thursday, March 3, 2011


http://www.birdpark.com.sg/
http://www.wikipedia.org/