Related Questions

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
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 can do a work in 24 days and B in 40 days. If they work on it together for 10 days, then what fraction of work is left?
A 1\/2
B 1\/3
C 2\/3
D 3\/4
A can do a work in 21 days and B in 42 days. If they work on it together for 7 days, then what fraction of work is left?
A 1\/3
B 1\/4
C 2\/3
D 1\/2
A can do a work in 36 days and B in 12 days. If they work on it together for 3 days, then what fraction of work is left?
A 2\/3
B 1\/3
C 1\/4
D 1\/5
A can do a work in 15 days and B in 20 days. If they work on it together for 6 days, then what fraction of work is left?
A 1\/4
B 2\/9
C 1\/5
D 3\/10
P and Q together can make a door in 12 days. They started the work together but after 8 days P left the work. The remaining work is completed by Q alone in 7 more days. In how many days can P alone complete the entire work?
A 21
B 24
C 28
D 32

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