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For The Mathematically Inclined

Anil Saigal
03/16/2008

FOR STUDENTS

PROBLEM # 1
A mixture containing 6% salt is to be mixed with 2 ounces of a mixture which is 15% salt, in order to obtain a solution which is 12% salt. How much of the first solution must be used?

FOR GROWNUPS 

PROBLEM # 2
Let tex2html_wrap_inline168 . Conclude that tex2html_wrap_inline172.

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Please send your solutions to anil@lokvani.com.

Use Problem Solutions M-032008 as the subject line. Please include your full name in the text of the main message. Everyone with the right answer will be acknowledged 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.

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Problem Solutions 03/06/08

FOR STUDENTS

PROBLEM # 1
Suppose you deposit $6000 in a bank and receive 4% per year compound interest for 7 years, compounded monthly. Find the amount after 7 years.

Solution:
$7936.44.

FOR GROWNUPS 

Compute tex2html_wrap_inline131.

Solution: 
-1/6.


Congratulations to
Aseem Chandawarkar, Sitaram Chandawarkar, Shailesh Goregaokar, Prabhakar Nadkarni and Hari Pillai, who were winners of the last set of puzzles.



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