Related Questions

One-fifth of the batteries produced by an upstart factory are defective and one -quarter of all batteries produced are rejected by the quality control technician. If one-tenth of the non-defective batteries are rejected by mistake and if all the batteries not rejected are sold, then what percent of the batteries sold by the factory are defective?
A 4%
B 3%
C 6%
D 5%
সিরিজে সংযুক্ত একটি এ্যামিটার এবং একটি অজানা রোধ দুটি একই রকম 1.5 V ব্যাটারীর দুই প্রান্তে সংযুক্ত আছে। যখন ব্যাটারী দুটি সিরিজে সংযুক্ত থাকে তখন এ্যামিটার। amp রিডিং প্রদর্শন করে। আবার ব্যাটারী দুটি সমান্তরালে সংযুক্ত করলে 0.6 amp রিডিং প্রদর্শন করে। ব্যাটারীর আভ্যন্তরিন রোধ কত ? (An ammeter and an unknown resistance are connected in series across two identical batteries of each 1.5 V. The ammeter shows current I amp and 0.6 amp when the batteries are connected in series and parallel, respectively. What is the internal resistance of the battery?)
A 13Ω
B 12Ω
C 1Ω
D 0.1Ω
E 23Ω
If Bashar can run around a ground four times in 20 minutes and Rahim can run around the same ground three times in 12 minutes, who can run around that ground more times in an hour, and how many times more can he run around ?
A Bashar, three times more
B Rahim , three times more
C They both go around 12 times
D Bashar, eight times more
"To Look quickly through a book is an important study skill." What is the meaning of the "To look quickly through" phrase in the sentence?
A Skim
B Outline
C Summarize
D Paraphrase
If we finish our work quickly, we can go to the movies. Here QUICKLY is a/an-
A Adverb
B Conjunction
C Verb
D Adjective
Changing one mind too quickly means -
A changeableness
B vacillation
C versatility
D instability
Changing one's mind too quickly -
A Changeableness
B Vacillation
C Versatility
D Instability
You want to view the contents of autoexec.bat on the screen using the "type" command, but it scrolls by too quickly, what switch do you use to make it pause?
A type c:autoexec.bat /p
B type c:autoexec.bat/more
C type c:autoexec.bat|pause
D type c:autoexec.bat|more.
E None of the above
Six batteries are kept one above the other. Jumbo is just above Pick. The Volt is between Tank and Ping. Lift is between Jumbo and Tank. Which battery is at second position from the bottom?
A Pick
B Tank
C Volt
D Jumbo
D.C. generator generally preferred for charging automobile batteries is
A Series generator
B Shunt generator
C Long shunt compound generator
D Any of the above

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