About Us Contact Us Help




For The Mathematically Inclined

Anil Saigal

Problem 1:

A watermelon weights 20lbs and contains 90% water.  After evaporates during the day and the water content is 80%. What is the weight of watermelon at the end of the day?

Problem 2:
If the same watermelon loses 5% of water content every day.  If its original weight is 20lbs. After how may days will it way 3lbs?


Please send your solutions info

Use Problem Solutions M-06/03/21 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 info@lokvani.com. 

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


Problems from M-05/06/21

Problem 1:
John computes that the mean of 25 items in his grocery bill is $3.14. He realizes that he made a mistake in price of an item. Instead of $4.50 he used $5.50.  What should be the actual mean of his grocery bill?

Problem 2:
Five integers are in the ratio 1: 2: 3: 4: 5.  Their arithmetic mean is 12. What is  the smallest of these numbers.

Congratulations to Ramachandran Balakrishna, who was the winner of the last set of problems.

Bookmark and Share |

You may also access this article through our web-site http://www.lokvani.com/

Home | About Us | Contact Us | Copyrights Help