Subject
Quantitative Aptitude
Topic
Time and Work
A can complete a work in 6 days while B can complete the same work in 12 days.If they work together and complete it,the portion of the work done by A is -
A can complete a work in 6 days while B can complete the same work in 12 days.If they work together and complete it,the portion of the work done by A is -
ক)
1/3খ)
1/4গ)
1/2ঘ)
2/3Explanation
(প্রশ্নঃ A একটি কাজ করতে পারে ৬ দিনে যা B করতে পারে ১২ দিনে।তারা একত্রে কাজটি সম্পন্ন করলে A কর্তৃক সম্পন্ন কাজের অংশ -) A একা ১ দিনে সম্পন্ন করে কাজটির ১/৬ অংশ B একা ১ দিনে সম্পন্ন করে কাজটির ১/১২ অংশ অতএব ১/৬ >১/১২ তাই A ১ দিনে B এর চেয়ে বেশি কাজ করবে। এখন, একই সময় ধরে কাজটি একসাথে করলে A ও B এর সম্পন্ন কৃত কাজের অনুপাত= ১/৬ ঃ ১/১২ =২ঃ১ অতএব সম্পন্ন কাজে A এর আনুপাতিক অংশ ঃ B এর আনুপাতিক অংশ =২ঃ১ A কর্তৃক সম্পন্ন কাজটির অংশ ২/(২+১) =২/৩ অংশRelated questions
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