IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: Who has the power to expel senators from office? 1503 0

  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर :
व्याख्या :

House of representatives has the power of impeachment in the office.

प्र: In a certain office, 1/3 of workers are women, 1/2 of the women are married and 1/3 of the married women have children. If 3/4  of the men are married and 2/3  of the married men have children, what part of the workers are without children? 1502 0

  • 1
    5/18
    सही
    गलत
  • 2
    4/9
    सही
    गलत
  • 3
    11/18
    सही
    गलत
  • 4
    17/36
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 3. "11/18"
व्याख्या :

Answer: C) 11/18 Explanation: Let the total number of workers be x. Then,    Number of women = x/3 and number of men = x - x/3  = 2x/3   Number of women having children = x/18   Number of men having children = x/3   Number of workers having children = (x/18) + (x/3) = 7x/18    Therefore, workers having no children = x - 7x/18 = 11/18 of all workers.

प्र: Which of the following is an example of market failure? 1502 0

  • 1
    Prices do not reflect the full social cost of production
    सही
    गलत
  • 2
    A firm goes out of business because it cannot find a market for its products
    सही
    गलत
  • 3
    Prices rise so that the consumers cannot afford the products they want to buy
    सही
    गलत
  • 4
    Producer surplus is maximized
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 1. "Prices do not reflect the full social cost of production"
व्याख्या :

Answer: A) Prices do not reflect the full social cost of production Explanation: Prices do not reflect the full social cost of production is an example of Market failure.   A market failure occurs when the supply of a good or service is insufficient to meet demand. This results in an inefficient distribution of resources among market participants. It also occurs if externalities are not accounted for. If a firm fails to maximize its profits this is not a general market failure.

प्र: In a confederal system of government, power is 1501 0

  • 1
    with States
    सही
    गलत
  • 2
    with Central
    सही
    गलत
  • 3
    Both A & B
    सही
    गलत
  • 4
    None of the above
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 1. "with States"
व्याख्या :

Answer: A) with States Explanation: Government can be classified in three manners: (1) who participates, (2) geographic distribution of power, and (3) legislative/executive relationship.   Who can participate is generally broken down into two forms of government, democracy or dictatorship   While the legislative/executive relationship is broken down into presidential or parliamentary   The geographic distribution of power is broken down into unitary, federal, and confederation (confederal). Confederal System of Government :: A system of government where power is located with the independent states and there is little power in the central government.   Today, no nation follows a confederal system. Organizations, like the European Union and the Commonwealth of Independent States, are based on the ideas of a confederal system. Several nations make up these organizations, but they still retain the majority of their independence.

प्र: A man walks at a speed of 2 km/hr and runs at a speed of 6 km/hr. How much time will the man require to cover a distance of 20 1/2 km, if he completes half of the distance, i.e., (10 1/4) km on foot and the other half by running ? 1501 0

  • 1
    12.4 hrs
    सही
    गलत
  • 2
    11.9 hrs
    सही
    गलत
  • 3
    10.7 hrs
    सही
    गलत
  • 4
    9.9 hrs
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 2. "11.9 hrs"
व्याख्या :

Answer: B) 11.9 hrs Explanation: We know that Time = Distance/speedRequired time = (10 1/4)/2 + (10 1/4)/6 = 41/8 + 41/6= 287/24 = 11.9 hours.

प्र: Which of the following is not a plantation crop? 1501 0

  • 1
    rubber
    सही
    गलत
  • 2
    coffee
    सही
    गलत
  • 3
    gram
    सही
    गलत
  • 4
    coconut
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 3. "gram"
व्याख्या :

Answer: C) gram Explanation: Gram is not a Plantation crop among the given options.   Plantation crops are known as cash crops. These crops are mostly grown at tropical and subtropical areas. These crops are grown for sale but not for local consumption. such crops include rubber, coffee, tea, various oil seeds, sugar cane,etc. So, Gram is not a plantation crop.

प्र: Find the Missing Number Puzzle for the Given 1501 0

  • 1
    8
    सही
    गलत
  • 2
    16
    सही
    गलत
  • 3
    9
    सही
    गलत
  • 4
    12
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 3. "9"
व्याख्या :

Answer: C) 9 Explanation: Given   6 = 3 => Number of letters in SIX = 3   12 = 6 => Number of letters in TWELVE = 6   14 = 8 => Number of letters in FOURTEEN = 8   Similarly,   22 = 9 => Number of letters in TWENTY TWO = 9           Therefore, 22 = 9.

प्र: What animal has the highest blood pressure? 1500 0

  • 1
    Elephant
    सही
    गलत
  • 2
    Giraffe
    सही
    गलत
  • 3
    Lion
    सही
    गलत
  • 4
    Rabbit
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 2. "Giraffe"
व्याख्या :

Answer: B) Giraffe Explanation: Giraffe has the highest blood pressure among animals.  This is due to the fact that there is a large pressure drop (~100 mmhg) as the blood is transported from the heart, up the neck, to the brain. This is about twice the normal blood pressure of humans (120/80 mmhg).

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई