Basic GK प्रश्न और उत्तर का अभ्यास करें

प्र: If in the following set of numbers, the first and the third digits are interchanged in each number, which number will be second from the end if arranged in ascending order after interchanging the digits ? 585  546  514  404  206  369 1307 0

  • 1
    404
    सही
    गलत
  • 2
    585
    सही
    गलत
  • 3
    415
    सही
    गलत
  • 4
    602
    सही
    गलत
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उत्तर : 3. "415"
व्याख्या :

Answer: C) 415 Explanation: Given numbers are 585 546 514 404 206 369Then interchanging the 1st and 3rd digits of the given numbers, we get585 645 415 404 602 963Now, arranging them in ascending order963 645 602 585 415 404Then the last second number is 415.

प्र: The ratio of present ages of X and Y is 4:5. Which of the following can't be the ratio of ages of X and Y, 20 years ago ? 1747 0

  • 1
    2 : 5
    सही
    गलत
  • 2
    8 : 15
    सही
    गलत
  • 3
    9 : 10
    सही
    गलत
  • 4
    3 : 5
    सही
    गलत
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उत्तर : 3. "9 : 10"
व्याख्या :

Answer: C) 9 : 10 Explanation: The ratio of X and Y ages at present is 4:5.  Then, the ratio 20 years ago will not be more than the ratio at present. So, from the options 9:10 is not satifying => its ratio is 0.9 which is greater than presnt ratio of 0.8.

प्र: A group of men can complete a job in K hours. After every 4 hours, half the number of men working at that point of time leave the job. Continuing this way if the job is finished in 16 hours, what is the value of K ? 3909 0

  • 1
    7 hrs
    सही
    गलत
  • 2
    7.5 hrs
    सही
    गलत
  • 3
    8 hrs
    सही
    गलत
  • 4
    8.25 hrs
    सही
    गलत
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उत्तर : 2. "7.5 hrs"
व्याख्या :

Answer: B) 7.5 hrs Explanation: Let there are L men job requires LK man hours.   job completed in first 4 hrs = L x 4 = 4L job completed in next 4 hrs = 4 x L/2 = 2L job completed in next 4 hrs = 4 x L/4 = L job completed in last 4 hrs = 4 x L/8 = L/2 4L + 2L + L + L/2 = KL K = 7+1/2 = 7.5 hours.

प्र: Statements : All keys are locks. All locks are bangles. All bangles are cars. Conclusion : a. Some cars are locks.                    b. Some bangles are keys.                    c. Some cars are keys. 2299 0

  • 1
    Only a follows
    सही
    गलत
  • 2
    Only c follows
    सही
    गलत
  • 3
    Only a & b follows
    सही
    गलत
  • 4
    a, b & c follows
    सही
    गलत
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उत्तर : 4. "a, b & c follows"
व्याख्या :

Answer: D) a, b & c follows Explanation: All locks are bangles + All bangles are cars = A + A = A= All locks are cars => Some cars are locks.Hence conclusion (a) follows.All keys are locks + All locks are bangles = A + A = A= All keys are bangles => some bangles are keys.Hence conclusion (b) follows.All keys are bangles + All bangles are cars = A + A = A= All keys are cars => Some cars are keys.Hence conclusion (C) follows. Thus all a, b and c follows.

प्र: How many number of weights do you need to weight 31 kg of Rice if you have one kg of weight stone ? 2876 0

  • 1
    3
    सही
    गलत
  • 2
    5
    सही
    गलत
  • 3
    7
    सही
    गलत
  • 4
    9
    सही
    गलत
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उत्तर : 2. "5"
व्याख्या :

Answer: B) 5 Explanation: There are total 5 ways.we have only one kg of weight so,2kg = 1kg + 1kg4kg = 1 + 2 + 18kg = 1 + 2 + 4 + 116kg = 1 + 2 + 4 + 8 + 131kg = 1 + 2 + 4 + 8 + 16So 5 weights are needed.

प्र: Statement: There has been a significant drop in the water level of all the lakes supplying water to the city.Courses of action:I. The water supply authority should impose a partial cut in supply to tackle the situation.II. The government should appeal to all the residents though mass media for minimal use of water. 2822 0

  • 1
    Only I follows
    सही
    गलत
  • 2
    Only II follows
    सही
    गलत
  • 3
    Both I & II follows
    सही
    गलत
  • 4
    Neither I nor II follows
    सही
    गलत
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उत्तर : 3. "Both I & II follows"
व्याख्या :

Answer: C) Both I & II follows Explanation: The situation can be tackled by periodic cuts in supply, and urging people to conserve water. So both the courses follow.

प्र: 'BE' is related to 'GJ' in the same way as 'PS' is related to ? 2155 0

  • 1
    VX
    सही
    गलत
  • 2
    TU
    सही
    गलत
  • 3
    UX
    सही
    गलत
  • 4
    TV
    सही
    गलत
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उत्तर : 3. "UX"
व्याख्या :

Answer: C) UX Explanation: Each corresponding letter moves five places forward in the alphabet.Here as BE is related to GJ then PS will relate to UX.

प्र: What is the next letter of the following sequence. N , O , M , P , L , Q , K , R , ? 5019 0

  • 1
    S
    सही
    गलत
  • 2
    I
    सही
    गलत
  • 3
    J
    सही
    गलत
  • 4
    T
    सही
    गलत
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उत्तर : 3. "J"
व्याख्या :

Answer: C) J Explanation: Here the series has mixed two series.n m l k...! reverse alphabeto p q r ...! forward alphabetSo the letter before k is j and after that letter after r is s and so on...

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