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 > Logic (1) > Probability > Shapes > General > Numbers (1) > Games > Paradoxes > Riddles > Just Math (2) > Science > Algorithms
For how many integers n is n/(100-n) also an integer?
 (No Solution Yet, 2 Comments) Submitted on 2024-09-09 by Danish Ahmed Khan
Bonus: Playing With Marbles (in Probability) Rating: 3.10
You choose one of two identical looking bags at random. One bag has three black marbles and one white marble. The other has three white marbles and one black marble.

After choosing a bag you draw one marble out at random. You notice it is black. You then put it back and draw another marble out of the same bag at random.

What is the probability that the second marble drawn is black?

 (Solution Posted, 23 Comments) Submitted on 2003-10-13 by Ravi Raja
Lunchtime Variety (in Logic)
Posted on 2024-09-09 by K Sengupta (No Solution Yet, 4 Comments)
Positive Definite Matrix (in Just Math)
Posted on 2024-09-08 by K Sengupta (No Solution Yet, 0 Comments)
Formula (in Numbers)
Posted on 2024-09-08 by K Sengupta (No Solution Yet, 0 Comments)
Expression for 29 (in Numbers)
Posted on 2024-09-07 by K Sengupta (No Solution Yet, 0 Comments)
Mark 2n of the 1's (in Just Math)
Posted on 2024-09-07 by K Sengupta (No Solution Yet, 1 Comments)
Is it Possible? (in Probability) Rating: 3.00
Posted on 2024-09-06 by K Sengupta (No Solution Yet, 5 Comments)
Secret Passages (in Cryptography)
Posted on 2024-09-06 by K Sengupta (No Solution Yet, 3 Comments)
Primality and Divisibility (in Just Math)
Posted on 2024-09-05 by Danish Ahmed Khan (No Solution Yet, 2 Comments)
Maurice's Garden (in Logic)
Posted on 2024-09-05 by K Sengupta (No Solution Yet, 1 Comments)
Steve's Tennis Tournament (in General)
Posted on 2024-09-04 by K Sengupta (No Solution Yet, 1 Comments)
Drinking logicians (in Logic)
Four Intersections (in Just Math)
Posted on 2024-09-03 by Danish Ahmed Khan (No Solution Yet, 3 Comments)
Real Solution to the System of Equations (in Just Math)
Posted on 2024-09-03 by K Sengupta (No Solution Yet, 2 Comments)
Heptagony (in Numbers)
Posted on 2024-09-02 by K Sengupta (No Solution Yet, 2 Comments)

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