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For The Mathematically Inclined

Anil Saigal
07/18/2018

Problem 1:

Four years ago, Alex was twice as old as Jake. Four years from now, Jake will be 3/4 of Alex's age. How old is Alex?

Problem 2:
Joe has ten coins totaling $1.19. From these coins, he cannot make exact change for a dollar, half-dollar, quarter, dime, or nickel.
What are the coins?

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Please send your solutions anil@lokvani.com. 

Use Problem Solutions M-071918 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 from 06/21/18

Problem 1:
How many three digit numbers that have a digit sum up to 6?
(Example number - 123)

Problem 2:
In how many points will intersect 14 different lines, where no two are parallel? 






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