GATE प्रश्न और उत्तर का अभ्यास करें
8प्र: When a computer prints a report this output is called 2374 05b5cc69fe4d2b4197774ca14
5b5cc69fe4d2b4197774ca14- 1Soft copyfalse
- 2Hard copytrue
- 3Printingfalse
- 4Programfalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 2. "Hard copy"
व्याख्या :
Answer: B) Hard copy Explanation: Hard copy is the output which is printed by the computer.
प्र: Three strategies P, Q and R have been initiated for cost cutting in a company producing respectively 20%, 30% and 10% savings. Assuming that they operate independently, what is the net saving achieved ? 2373 05b5cc73ae4d2b4197774f8dd
5b5cc73ae4d2b4197774f8dd- 149.6%true
- 250.4%false
- 333.67%false
- 466.66%false
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 1. "49.6%"
व्याख्या :
Answer: A) 49.6% Explanation: As these three strategies P, Q and R are independent so these will cut cost one after the other.If initial cost is Rs 100, then20% cost is cut after initializing strategy P, then cost will remain 80% = 80further 30% cost is cut after strategy Q, then cost will remain 70% of 80 = 56further 10% cost is cut after strategy R, then cost will remain 90% of 56 = 50.4 Thus final cost remains 50.4 % of the original cost. Hence net saving is 100 - 50.4 = 49.6 %.
प्र: A shopkeeper has a job to print certain number of documents and there are three machines P, Q and R for this job. P can complete the job in 3 days, Q can complete the job in 4 days and R can complete the job in 6 days. How many days the shopkeeper will it take to complete the job if all the machines are used simultaneously ? 2372 05b5cc758e4d2b4197774fbf4
5b5cc758e4d2b4197774fbf4- 14/3 daystrue
- 22 daysfalse
- 33/2 daysfalse
- 44 daysfalse
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 1. "4/3 days"
व्याख्या :
Answer: A) 4/3 days Explanation: Let the total number of documents to be printed be 12. The number of documents printed by P in 1 day = 4. The number of documents printed by Q in 1 day = 3. The number of documents printed by R in 1 day = 2. Thus, the total number of documents that can be printed by all the machines working simultaneously in a single day = 9. Therefore, the number of days taken to complete the whole work = 12/9 = 4/3 days.
प्र: A secret can be told to only 3 persons in 3 minutes. Each person in turn tells 3 other persons in the next 3 minutes and the processes continues accordingly. In 30 minutes how many persons can be told this secret in this way ? 2369 05b5cc741e4d2b4197774f99a
5b5cc741e4d2b4197774f99a- 188572true
- 277854false
- 399584false
- 455654false
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 1. "88572"
व्याख्या :
Answer: A) 88572 Explanation: Given a secret is told to 3 persons in 3 minutes.And if the process continues with each person saying 3 other persons,In 30 minutes => the rocess for 10 times because each person time is 3 minutes.Required number of persons = 3 + 32 + 33 + .... + 39 + 310 Now it forms a geometric progression, Sum to n terms is S = arn - 1r - 1 Here a = 3, r = 3 => 59048 x 3 /2 = 88572.
प्र: Tilak rides on a cycle to a place at speed of 22 kmph and comes back at a speed of 20 kmph. If the time taken by him in the second case is 36 min. more than that of the first case, what is the total distance travelled by him (in km)? 2366 05b5cc6a0e4d2b4197774ca6c
5b5cc6a0e4d2b4197774ca6c- 1132 kmfalse
- 2264 kmtrue
- 3134 kmfalse
- 4236 kmfalse
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 2. "264 km"
व्याख्या :
Answer: B) 264 km Explanation: Let the distance travelled by Tilak in first case or second case = d kms Now, from the given data, d/20 = d/22 + 36 min => d/20 = d/22 + 3/5 hrs => d = 132 km. Hence, the total distance travelled by him = d + d = 132 + 132 = 264 kms.
प्र: Tides are primarily a result of the ____ ? 2365 05b5cc6d5e4d2b4197774e5f7
5b5cc6d5e4d2b4197774e5f7- 1Attraction of the Moontrue
- 2Farrel's lawfalse
- 3Ocean Currentsfalse
- 4Earth's pressure systemfalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
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उत्तर : 1. "Attraction of the Moon"
व्याख्या :
Answer: A) Attraction of the Moon Explanation:
प्र: How many lines of symmetry does a Pentagon have? 2365 05b5cc6b2e4d2b4197774d36e
5b5cc6b2e4d2b4197774d36e- 14false
- 25true
- 36false
- 40false
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 2. "5"
व्याख्या :
Answer: B) 5 Explanation: A regular Pentagon have 5 sides and 5 lines of symmetry. The number of lines of symmetry in a regular polygon is equal to the number of sides.
प्र: What is the systematic name of NH4ClO3? 2364 05b5cc6aae4d2b4197774cf74
5b5cc6aae4d2b4197774cf74- 1Ammonium Chloridefalse
- 2Ammonium Chloratetrue
- 3Ammonium Chloranefalse
- 4Ammonium Chlorinefalse
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 2. "Ammonium Chlorate"
व्याख्या :
Answer: B) Ammonium Chlorate Explanation: In common we all call the systematic name of NH4ClO3 as Ammonium Chlorate. But originally the systematic name is azanium trioxidochlorate.

