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| For The Mathematically Inclined |
Anil Saigal
01/27/2015
Problem #1
If 6 boys fill 6 notebooks in 6 weeks and 4 girls fill 4 notebooks in 4 weeks, how many notebooks will a class of 12 boys and 12 girls fill in 12 weeks?
Problem #2
Three boxes contain two coins each. One contains two nickels, one contains two dimes, and one contains a dime and a nickel. All three boxes are mislabeled. (Each contains the label of one of the other two boxes.) If you are permitted to take out only one coin at a time, how many must you take out in order to be able to label all three boxes correctly?
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Solutions from 01/15/2015
Problem #1
A fish weighs ten pounds plus half of its weight. How much does it weigh?
Solution:
20 lbs.
Solution:
20 lbs.
Problem #2
An eight-digit number contains two 1's, two 2's, two 3's, and two 4's. The 1's are separated by one digit, the 2's by two digits, the 3's by three digits, and the 4's by four digits. What is the number?
Solution:
Congratulations to Kishore Balsara, Abhimanyu Bhargava, Mahima Das, Sanjna Das, Baldev Luther, Annie Shah and Pranaya Srinivasan, who were winners of the last set of puzzles. Solution:
41312432
23421314
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