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For The Mathematically Inclined

Anil Saigal
09/25/2019

Problem 1:
What is the percentage of vinegar in a solution if we mix to 3 liters of 5.8% and 5 liters of 7.6% vinegar?

Problem 2:
An alloy A is a mixture of two metals in the ratio 1:2, an alloy B a mixture of same metals in the ratio 2:3. At what ratio we have these two alloys put into the furnace to obtain a new metal alloy with ratio 17:27?

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Please send your solutions anil@lokvani.com. 

Use Problem Solutions M-11/0719 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 10/24/19

Problem 1:
The regular quadrangular prism has a base edge a = 7.1 cm and side edge = 18.2 cm long. What is its volume?

Problem 2:
 The base of a perpendicular triangular prism is a right triangle with legs 4.5 cm and 6 cm long. What is the surface of the prism, if its volume is 54 cubic centimeters?


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



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