Related Questions

At a photocopy center , the first 10 copies cost x taka each. Each of the next 50 copies costs 2 taka less per copy . From the 61 st copy on, the cost 1 Taka per copy, In terms of x how much does it cost in. Taka to have 200 copies made/
A 10x+240
B 50x-10
C 50(x-5)
D 60x+140
A,B,C,D,E,G and I are seven friends who study in three different standards namely 5th, 6th and 7th such that not less than two friends study in the same standard. Each friend also has a different favorite subject namely History, Civics, English, Bangla, Science , Maths , and Economics but not necessarily in the same order. A likes Maths and studies in the 5th standard with only one other friend who likes Bangla. I studies with tow other friends . Both the friends who study with I like languages (Here languages include only Science , English and Bangla ) . D studies in the 6th standard with only one person and does not like Civics . E studies with only one friend . The one who likes history does not study in 5th or 6th standard . E does not like languages. C does not like English , Science or Civics. Which combination represents E's favorite subject and the standard in which he studies?
A Civics and 7th
B Economics and 5th
C Civics and 6th
D History and 7th
One copy machine can make 20 copies a minute , and a second copy machine makes 15 copies a minute. If the two copiers work together, how long would it take them to make 2100 copies?
A 60 minutes
B 105 minutes
C 122 minutes
D 140 minutes
One copy machine can make 20 copies a minute, and a second copy machine makes 15 copies a minute. If the two copies work together, how long would it take them to make 2100 copies?
A 60 minutes
B 105 minutes
C 122 minutes
D 140 minutes
Which command is used to copy a file wb with the same name from the programs directory to the misc directory?
A copy programs/wb misc/wb
B cp programs/wb misc
C tar programs/wb misc/wb
D copy a:programs/wb b:misc/wb
E None of the above
Which of the following filename extension suggests that the file is a backup copy of another file?
A .txt
B .com
C .bas
D .bak
E None of the above
Which of the following commands is used to copy a file wb from the programs directory into a file called wbx in the misc directory?
A copy programs/wb misc/wbx
B cp programs/wb misc/wbx
C tar programs/wb misc/wbx
D copy a:programs/wb b:misc/wbx
E None of the above
While working with MS-DOS which command is used to copy all files with extension .txt into one file named all.txt?
A Copy a: *.txt
B Copy *.txt a:
C Copy *.txt c:
D Copy *.txt all.txt
Which of command is used to copy a file?
A copy
B cp
C cpio
D tar
E None of the above
What command is used to copy a file?
A tar
B cpio
C cp
D copy
E None of the above

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