GRE प्रश्न और उत्तर का अभ्यास करें

प्र: Dot cabs company provides cabs for software employees. The company has 8 Swift dzires, 6 Scorpios, 7 Innovas and few small cars. If Swift dzire makes one fourth of the total fleet, how many small cars are there in the company ? 2301 0

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    9
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  • 2
    10
    सही
    गलत
  • 3
    11
    सही
    गलत
  • 4
    12
    सही
    गलत
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उत्तर : 3. "11"
व्याख्या :

Answer: C) 11 Explanation: Given the company has 8 SD + 6 SRP + 7 IN = 21 cars + 'x' small cars.Given SD makes 1/4 th of the total fleet.=> 8 = 1/4 (21 + x)=> 32 = 21 + x=> x = 11 Therefore, the company has 11 small cars.

प्र: A sum is divided among K, L and M in such a way that for each rupee K gets, L gets 45 paisa and M gets 30 paisa. If the share of L is Rs. 27,  what is the total amount  ? 2300 0

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    Rs. 159
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  • 2
    Rs. 96
    सही
    गलत
  • 3
    Rs. 147
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    गलत
  • 4
    Rs. 105
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उत्तर : 4. "Rs. 105"
व्याख्या :

Answer: D) Rs. 105 Explanation: K : L : M = 100 : 45 : 30              = 20 : 9 : 6 Given L share is 27 => 9  ------  27      35 ------  ?       => 105

प्र: A,B,C together can do a piece of work in 10 days.All the three started workingat it together and after 4 days,A left.Then,B and C together completed the work in 10 more days.In how many days can complete a work alone ? 2300 0

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    25
    सही
    गलत
  • 2
    24
    सही
    गलत
  • 3
    23
    सही
    गलत
  • 4
    21
    सही
    गलत
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उत्तर : 1. "25"
व्याख्या :

Answer: A) 25 Explanation: (A+B+C) do 1 work in 10 days. So (A+B+C)'s 1 day work=1/10 and as they work together for 4 days so workdone by them in 4 days=4/10=2/5 Remaining work=1-2/5=3/5   (B+C) take 10 more days to complete 3/5 work. So( B+C)'s 1 day work=3/50 Now A'S 1 day work=(A+B+C)'s 1 day work - (B+C)'s 1 day work=1/10-3/50=1/25 A does 1/25 work in in 1 day Therefore 1 work in 25 days.

प्र: Q's mother is sister of P and daughter of M who is brother of R. S is daughter of P and sister of T. How is M related to T ? 2297 0

  • 1
    Grand father
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  • 2
    Grand mother
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  • 3
    Grand father or Grand mother
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  • 4
    Can't be determined
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उत्तर : 1. "Grand father"
व्याख्या :

Answer: A) Grand father Explanation: Q's mother is sister of P and daughter of M => P is the child of M.S is daughter of P and sister of T, so P is parent of T too.M ----> parent --------> P ------------>parent -------------> TBut given M is brother of R => M is male. So, M is grandfather of T.

प्र: Galileo was an Italian Astronomer who 2295 0

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    Discovered 4 satellites of Mars
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    Developed the Telescope
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    Discovered that the movement of pendulum produces a regular time measurement
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  • 4
    Both B & C
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उत्तर : 4. "Both B & C"
व्याख्या :

Answer: D) Both B & C Explanation: Galileo Galilei (1564-1642) was an Italian Astronomer who        1) Discovered 4 satellites of Jupiter 2) Developed Telescope   3) Discovered that the movement of pendulum produces a regular time measurement He is Physicist, Mathematician, inventor, and philosopher Too.

प्र: There are six persons 1, 2, 3, 4, 5 and 6. 3 is the sister of 6. 2 is the brother of 5's husband. 4 is the father of 1 and grandfather of 6. There are two fathers, three brothers and a mother in the group. Which of the following is a group of brothers ? 2295 0

  • 1
    1, 2, 3
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  • 2
    3, 2, 6
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  • 3
    1, 2, 4
    सही
    गलत
  • 4
    1, 2, 6
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उत्तर : 4. "1, 2, 6"
व्याख्या :

Answer: D) 1, 2, 6 Explanation: 4 is father of 1 and grandfather of 6. So, 1 is father of 6. Thus, 4 and 1 are the two fathers. 3 is the sister of 6. So, 3 is the daughter of 1. Since there is only one mother, it is evident that 5 is the wife of 1 and hence the mother of  3 and 6. So, 2 is brother of 1. There are three brothers. So, 6 is the brother of 3. Hence, 2 and 1 are brothers. 6 is the brother of 3. So, three brothers are 1, 2, 6.

प्र: Rita ? into the cellar. Which of the following words best suitable in the place of '?' 2293 0

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    ascended
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  • 2
    rescinded
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  • 3
    descended
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  • 4
    intended
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उत्तर : 3. "descended"
व्याख्या :

Answer: C) descended Explanation: Rita descended into the cellar. Descended means went down. As the cellar is in the basement, she must go down. Options and meanings ::  descended  -  went down  rescinded   - cancelled or annulled ascended   - went up  intended    - meant

प्र: A Step-Up Transformer Increases 2293 0

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    Power
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  • 2
    Current
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  • 3
    Frequency
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    गलत
  • 4
    Voltage
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उत्तर : 4. "Voltage"
व्याख्या :

Answer: D) Voltage Explanation: A transformer that increases voltage from primary to secondary (more secondary winding turns than primary winding turns) is called a Step-Up Transformer. Conversely, a transformer designed to do just the opposite is called a Step-Down Transformer.

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