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For The Mathematically Inclined

Anil Saigal
06/05/2019

Problem 1:
How many different flags can be made from colors white, red, green, purple, orange, yellow, blue so that each flag consisted of three different colors?



Problem 2:
A new flag is to be designed with 6 vertical stripes using all 4 colors. In how many ways can this be done so that no 2 adjacent stripes have the same color and it is given that we have to use all the 4 colors for 4 stripes


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Please send your solutions anil@lokvani.com. 

Use Problem Solutions M-062019 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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Problems - 06/06/19

Problem 1:
A company sent four painters to paint a school. They should be done in 12 days. After 3 days, one painter got ill. After 5 days, another painter got ill.  How long will the remaining painters paint the school?

Problem 2:
4 workers can lay the floor  in a school in 20 days. After 2 days 4 more workers join them.  After 5 days, 3 of them decide to work half the time. How long did it take to lay the floor.   


Congratulations to Vijay Aivalli and Kishore Balsara, who were the winners of the last set of puzzles. 



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