Related Questions

Two men and women are entrusted with a task. The second man needs three hours more to cope up with the job than the second man and the woman would need working together. The first man, working alone, would need as much time as second man and the woman working together. The first man working alone, would spend eight hours less than the double period of the time second man would spend working alone. How much time would the two men and the women need to complete the task if they all asked together?
A 1 hour
B 2 hours
C 3 hours
D 4 hours
E 5 hours
৪ঃ ৫= ১২ঃ x হলে x -এর মান কত হবে?
A ১২
B ১৩
C ১৪
D ১৫
চারটি সমানুপাতিক রাশির প্রান্তীয় রাশি দুটির গুনফল ২০০। প্রথম রাশিঃ দ্বিতীয় রাশি= ১ঃ২, দ্বিতীয় রাশিঃচতুর্থ রাশি= ১ঃ৪। তৃতীয় রাশিটি কত?
A ৫
B ১০
C ২০
D ৪০
কঃখ= ১ঃ২ এবং খঃগ = ৩ঃ৪ হলে কঃখঃগ কতো?
A ১ঃ২ঃ৪
B ১ঃ৩ঃ৬
C ৩
D ৩ঃ৬ঃ৮
দুটি ক্রমিক জোড় সংখ্যার অনুপাত ১ঃ২। সংখ্যা দুটি নির্ণয় করুন।
A ১ এবং ২
B ২ এবং ৪
C ৪ এবং ৮
D ৮ এবং ১৬
A machine can produce 10 units in 5 hours. Another machine can produce 5 units in 10 hours. Working together, how many units can they produce in 30 hours?
A 50 units
B 60 units
C 70 units
D 80 units
City High School must put together a debating team consisting of four debaters.There are candidates of equal ability : X,Y and Z who are all seniors; and A,B,C and D who are all juniors..The school requires that there should be two seniors and two juniors in the team.It is also necessary that all of the debaters be able to work with one another. *Debaters Y and A cannot work together. *Debaters Z and C cannot work together. *Debaters A and B cannot work together. which of the following statements must be false? 1.Debaters Y and C are never selected together. 2.Debaters Z and D are never selected together. 3.Debaters Z and D are never selected together.
A Only I
B Only II
C Only III
D All of these
4x2+11y2-24xy-50x -225=0 সমীকরণটির জ্যামিতিক পরিচয় কোনটি?
A বৃত্ত
B সরলরেখা
C অধিবৃত্ত
D উপবৃত্ত
2d2xdt2+50x = 0  সমীকরণে কৌণিক কম্পাঙ্ক কত?
A  25 rads-1
B  5 rads-1
C  2 rads-1
D  1 rads-1
Working alone, pump A can empty a pool in 3 hours. Working alone, pump B can empty the same pool in 2 hours. Working together, how many minutes will it take pump A and pump B to empty the pool?
A 72
B 75
C 84
D 96

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