PROBLEM #1
How many liters of pure water should be evaporated(removed) from 160 liters of 12% saline(salt) solution so that the solution that remains is a 20% solution?

PROBLEM #2
Two trains, one 500 meters long and the other 1000 meters long, are traveling in opposite directions on parallel tracks. The first train is traveling at 100km/h and the other at 80km/h. How long will it take for the trains to pass each other from the moment the locomotives are at the same point?

----------------------------------------------------------------------------------------------------------

Please send your solutions to mr.asaigal@gmail.com.

Use Problem Solutions M-090111 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.

-------------------------------------------------------------------------------------------------------------

Problems from 08/18/11

PROBLEM # 1
Ram went into a back to cash a check. In handling the money, the cashier, by mistake, gave him dollars for cents and cents for dollars. He pocketed the money without examining it, and spent a nickel on his way home. He then found out that he possessed exactly twice the money of the check.
He had no money in his pocket before going to the bank. What was the exact amount of the check?

SOLUTION 1
31.63.

SOLUTION 2
10, 11, 12, 13 and 14. 

Congratulations to Debjyoti Banerjee and Suhas Joglekar, who were the winners of the last set of puzzles.

|