Subject
Bank Exam
Topic
Joint Recruitment Test for 8 Banks (SO) [03-09-2019, AUST
[ Read the following questions carefully and choose the right answer. ]A is twice as good as B and together they finish a piece of work in 16 days. The number of days taken by A alone to finish the work is
[ Read the following questions carefully and choose the right answer. ]A is twice as good as B and together they finish a piece of work in 16 days. The number of days taken by A alone to finish the work is
ক)
20 daysখ)
21 daysগ)
22 daysঘ)
24 daysExplanation
প্রশ্নে বলা হচ্ছে A, B এর চাইতে দুই গুণ বেশি গতিতে কাজ করে । তারা একত্রে 16 দিনে কাজটি শেষ করলে A একাকী কাজ শেষ করতে কত দিন সময় নিবে ? ধরি, A কাজটি করে x দিনে ও B কাজটি করে 2x দিনে A এবং B একত্রে 1 দিনে করে = ( 1/x + 1/2x ) অংশ কাজ প্রশমতে, ( 1/x + 1/2x ) = 1/16 => 2+1/2x = 1/16 => 3/2x = 1/16 => 2x = 48 x = 48/2 = 24 অর্থাৎ A কাজটি একাকী করে 24 দিনে ।Related questions
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