বিসিএস প্রিলিমিনারি + রিটেন টেস্ট | গণিত | Combined Bank (সমন্বিত ব্যাংক), Officer (Cash) -Sonali Bank | BD Development | BD Krishi Bank - 12102018, গণিত

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Questions

A computer can perform 30 identical tasks in 6 hour. At that rate, what is the minimum number of computers that should be assigned to complete 80 of the tasks within 3 hours ?

A and B together can complete a piece of work in 12 days, B and C can do it in 20 days and C and A can do it in 15 days. A , B and C together can complete it in.

A number when divided by 627 leaves a remainder 43. By dividing the same number by 19 , the remainder will be__