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For The Mathematically Inclined

Anil Saigal
03/28/2019

Problem 1
Two friends traveling by plane had a total of 35lb of luggage. They paid 72 and 108 dollars for being overweight. If only one paid for all the bags, it would cost 300 dollars. What weight of baggage did each of them have?

Problem 2
Five counters are open at airport for checkin. Customers wait an average of 15 minutes. How many more counters have to open to reduce the waiting time by 4 minutes? (Assume the processing time is uniform)

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If you need clarification on any problem, please contact anil@lokvani.com. 

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Problems - 03/28/19

Problem 1
If the endpoints of a diameter of a circle are (10, -1) and (3, 10), what is the radius of the circle?

Ans: 6.52.

Problem 2
What is the radius of the circle passing through (10,-1), (3,10), and (0,0)?

Ans: 6.37.



Congratulations to Ramachandran Balakrishna and Kishore Balsara, who were winners of the last set of puzzles.



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