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For The Mathematically Inclined
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Anil Saigal 07/05/2004
PROBLEM # 1
Seema celebrated her 14th birthday on September 10, 2000. How old would she be if weekends (Saturday and Sunday) did not contribute to her age? FOR GROWNUPS
PROBLEM # 2
Consider the integers from 1 to 10,000,000,000. What is the
number of integers that include the digit 1. -------------------------------------------------------------------------------------------------------------
Please send your solutions to anil@lokvani.com.
Use Problem Solutions M-071504 as the subject line. Please include your full name in
the text of the main message. The first one to submit the right answer will be profiled in
the next issue of Lokvani.
Please do not post your solution in Post Comments. No credit will be given for
solutions not sent to anil@lokvani.com.
If you need clarification on any problem, please contact anil@lokvani.com.
------------------------------------------------------------------------------------------------------------- SOLUTIONS TO PROBLEMS ON 07/01/04
FOR CHILDREN
PROBLEM # 1
A person was born on July 4, 30 B.C. and died on July 4, 30 A.D. How many years did the person live?
SOLUTION
60 years.
FOR GROWNUPS
PROBLEM # 2
Determine the sum of all positive six-digit numbers. Please provide the exact value!
SOLUTION
494,999,550,000.
Congratulations A. Balu, S. Bansal, V. Joshi, D. Prabhu, D. Ranjan, A. Shenai, M. Sheshadri, W. Syed and B. Venkataraman, who were winners of the last set of puzzles.
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