IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: The coldest planet in the solar system is ? 2287 0

  • 1
    Venus
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    गलत
  • 2
    Jupiter
    सही
    गलत
  • 3
    Uranus
    सही
    गलत
  • 4
    Pluto
    सही
    गलत
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उत्तर : 3. "Uranus"
व्याख्या :

Answer: C) Uranus Explanation:

प्र: Productivity is the combination of 2287 0

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    efficiency and energy
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    गलत
  • 2
    efficiency and effectiveness
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  • 3
    efficiency and attitude
    सही
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  • 4
    effectiveness and resources
    सही
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उत्तर : 2. "efficiency and effectiveness"
व्याख्या :

Answer: B) efficiency and effectiveness Explanation: Productivity is a result of the way that a business operates – the result of the way that its people, business processes, different functional units and suppliers come together to meet the needs and wants of its customers. Productivity is the combination of intelligent planning and focused efforts and hence, it is a combination of Efficiency and Effectiveness. Efficiency : Efficiency is an internal measure of performance for companies that shows how well the company converts inputs into outputs. The more the ratio of outputs to inputs approaches 100 percent, the better the efficiency of the process will be. In simple terms, it is “doing things right” and comes from proper harnessing of time, cost and efforts. Effectiveness : Organizational effectiveness is an external measure of performance and indicates how well an organization fulfills the demands of various organizational stakeholders. Simply put, it is “doing the right things."

प्र: 90 D in a R A 2284 0

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उत्तर :
व्याख्या :

90 D in a R A => 90 degrees in a Right Angle.  This is similar to  26 L of the A = 26 Letters of the Alphabet 12 S of the Z.

प्र: If 5th March, 2005 is Monday, what was the day of the week on 5th March, 2004 ? 2284 0

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    Sunday
    सही
    गलत
  • 2
    Monday
    सही
    गलत
  • 3
    Tuesday
    सही
    गलत
  • 4
    Wednesday
    सही
    गलत
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उत्तर : 1. "Sunday"
व्याख्या :

Answer: A) Sunday Explanation: The year 2004 is a leap year. So, it has 2 odd days. But, Feb 2004 not included because we are calculating from March 2004 to March 2005. So it has 1 odd day only. The day on 5th March, 2005 will be 1 day beyond the day on 5th March, 2004. Given that, 5th March, 2005 is Monday. 5th March, 2004 is Sunday (1 day before to 5th March, 2005).

प्र: The average age of A and B, 2 years ago was 26. If the age of A, 5 years hence is 40 yrs, and B is 5 years younger to C, then find the difference between the age of A and C? 2283 0

  • 1
    11 yrs
    सही
    गलत
  • 2
    9 yrs
    सही
    गलत
  • 3
    7 yrs
    सही
    गलत
  • 4
    13 yrs
    सही
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उत्तर : 2. "9 yrs"
व्याख्या :

Answer: B) 9 yrs Explanation: Let the present ages of A and B be 'x' and 'y' respectively From the given data,  [(x-2) + (y-2)]/2 = 26 => x+y = 56 But given the age of A, 5 years hence is 40 yrs => present age of A = 40 - 5 = 35 yrs => x = 35 => y = 56 - 35 = 21 => Age of B = 21 yrs Given B is 5 years younger to C, => Age of C = 21 + 5 = 26 yrs => Required Difference between ages of A and C = 35 - 26 = 9 yrs.

प्र: A person says that his son is 5 times as old as his daughter and his wife is 5 times older than his son and he is twice the age of his wife . The sum total of all the ages equals the age of the grand mother who celebrated her 81st birthday today. How old was his son? 2280 0

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    50 yrs
    सही
    गलत
  • 2
    25 yrs
    सही
    गलत
  • 3
    72 yrs
    सही
    गलत
  • 4
    40 yrs
    सही
    गलत
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उत्तर : 1. "50 yrs"
व्याख्या :

Answer: A) 50 yrs Explanation: Let the daughter age be 'x'Therefore, Son age = 5x, Mother age = 25x, Person age = 50x. Thus we get, x+5x+25x+50x = 8181x = 81x = 1 Daughter's age = 1, Son's = 5, Mother's = 25, Person's age = 50.

प्र: Which of the following is generally true about the stratosphere? 2279 0

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    It is very dry
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  • 2
    It is very moist
    सही
    गलत
  • 3
    The dryness level varies with the season
    सही
    गलत
  • 4
    The dryness level varies with the moon cycle
    सही
    गलत
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उत्तर : 1. "It is very dry"
व्याख्या :

Answer: A) It is very dry Explanation: The stratosphere layer of the atmosphere is very dry.

प्र: What determines the value of an item? 2278 0

  • 1
    the capital required to build the factory
    सही
    गलत
  • 2
    the unlimited wants of the consumers
    सही
    गलत
  • 3
    the resources consumed in production
    सही
    गलत
  • 4
    the amount of goods that are produced
    सही
    गलत
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उत्तर : 1. "the capital required to build the factory"
व्याख्या :

Answer: A) the capital required to build the factory Explanation: Value is the monetary worth of something, in this case, it is an item. In option A, since it is talking about capital which is measured in monetary terms. The value of an item is determined by its quality and its age. Often antiques with good quality are sold in the market with a high value and are sometimes auctioned.

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