4
votes
2answers
206 views

Math Puzzle: Area of Concentric Rings

The problem below appeared on the latest round of Google Code Jam: Maria has been hired by the Ghastly Chemicals Junkies (GCJ) company to help them manufacture bullseyes. A bullseye consists of a ...
2
votes
4answers
406 views

Extending the length of a curcumference by 1 meter

I once heard the following statement: Take a piece of string and measure the length around a ball. Now add 1 meter to the string and stretch it out evenly around the ball. Obviously the ...
1
vote
1answer
465 views

Geometry Puzzle - Largest circle on Chess

The following puzzle was asked in company interview round.I have no idea ,how to do it? ...
0
votes
1answer
152 views

What is the ratio of the area?

If the segment A'B' is tangent to the incircle of triangle ABC, and that segment AB = segment CM; then, what is the ratio of the area of the triangle ABC to the area of the small triangle A'B’C? ...