PROBLEM # 1
What is the 150th letter in the pattern ABBCCCDDDD...?

FOR GROWNUPS

PROBLEM # 2
Find the value of (234567891)(234567891) -  (234567895)(234567887).

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SOLUTIONS TO PROBLEMS ON 11/04/04

FOR CHILDREN

PROBLEM # 1

If one blue equals 3 greens, 6 reds equals 3 blues, and 3 yellows equals 9 red, then 10 yellows equals how many greens?

SOLUTION
 45 greens.

FOR GROWNUPS

PROBLEM # 2

A palindromic number is a whole number that is the same number forwards as it is backwards. For example, 151 is a palondromic number. There are 90 three digit palindromes. How many five-digit palindromes exist?

SOLUTION
900.

Congratulations to Aneesh Anand, Giridhar Anand, Nidhi Bhargava, Nidhee Krishnan, Samir Mehta, Madhu Misra, Pooja Mutalik, Sirisha Nalamati, Sarthak Pani, Rajiv Ramaratnam, Anitha Rajagopalan, Arun Saigal, Mukund Seshadri, Sumanth Shankar, Neha Sharma and L. Viswanathan, who were winners of the last set of puzzles.

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