Subject
Quantitative Aptitude
Topic
Miscellaneous
20 litres of a mixture contains milk and water in the ratio 3:1 .Then the amount of milk to be added to the mixture so as to have milk and water in ratio 4:1 is -
20 litres of a mixture contains milk and water in the ratio 3:1 .Then the amount of milk to be added to the mixture so as to have milk and water in ratio 4:1 is -
ক)
7খ)
4গ)
5ঘ)
6Explanation
(প্রশ্নঃ ২০ লিটারের একটি মিশ্রনে দুধ ও পানির অনুপাত ৩ঃ১। এই মিশ্রনে দুধ পানির অনুপাত ৪ঃ১ করতে হলে কতটুকু দুধ মেশাতে হবে?) দুধ-পানির মিশ্রনে ,দুধের পরিমান=২০×(৩/৪)=১৫ লিটার এবং পানির পরিমাণ =২০×(১/৪)=৫ লিটার মনে করি,মিশ্রনে x লিটার দুধ মিশাতে হবে শর্তমতে, (১৫+x)/৫=৪/১ বা,১৫+x =২০ x =৫ সুতরাং ৫ লিটার দুধ মিশাতে হবেRelated questions
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