A dishonest milkman professes to sell his milk at cost price but he mixes it with water and there by gains 25% . The percentage of water in the mixture is:

A dishonest milkman professes to sell his milk at cost price but he mixes it with water and there by gains 25% . The percentage of water in the mixture is: Correct Answer 20%

ধরি, 1 লিটার দুধের ক্রয়মূল্য 1 টাক এবং, 1 লিটার দুধের মিশ্রনের বিক্রয়মূল্য 1 টাকা ২৫% লাভে, 1 লিটার মিশ্রনের ক্রয়মূল্য = ( 100/125 × 1) = 4/5 টাকা মিশ্রণে দুধ ও পানির অনুপাত = 4/5 - 0 : 1 - 4/5 = 4/5 : 1/5 মিশ্রনে পানির শতকরা হার = 1/5 × 100% = 20%
Bissoy MCQ

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