IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: Find the next number in the given number series? 96, 95, 87, 78, ? 2339 0

  • 1
    64
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  • 2
    57
    सही
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  • 3
    29
    सही
    गलत
  • 4
    14
    सही
    गलत
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उत्तर : 4. "14"
व्याख्या :

Answer: D) 14 Explanation: The given number series is 96, 95, 87, 78, ?  It follows a pattern that, 9696 - 12 = 9595 - 23 = 95 - 8 = 8787 - 32 = 87 - 9 = 7878 - 43 = 78 - 64 = 14   Hence, the next number in the given number series is 14.

प्र: What three statements make up the cell theory? 1395 0

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    All living things are made up of cells.
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  • 2
    New cells come frome exisiting cells.
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  • 3
    Cells are the basic unit of structure/function in living things.
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  • 4
    All of the above
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उत्तर : 4. "All of the above"
व्याख्या :

Answer: D) All of the above Explanation: The three statements make up the cell theory are::   1. All living things are made up of cells. 2. Cells are the basic unit of structure/function in living things. 3. New cells come frome exisiting cells.   These cells can vary widely, but all living things are composed of cells.

प्र: Why did settlers move to the great plains? 1276 0

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    There were minerals in the region
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  • 2
    Government was offering 160 acres of land for free
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    Land prices in the East were getting too expensive
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    गलत
  • 4
    All of the above
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उत्तर : 4. "All of the above"
व्याख्या :

Answer: D) All of the above Explanation: Land prices in the East were getting too expensive, and the West (Great Plains) offered an opportunity for more people to own land. Although the area suffered from extreme weather and poor soils, many people decided to take the risk and venture to the Great Plains. The government was also committed to supporting those who decided to make the move.   Settlers moved to the Great Plains for several reasons. One reason was the government was offering 160 acres of land for free if the settler agreed to live on the land for five years. This was part of the Homestead Act of 1862.   Some people went to the Great Plains when they heard there were minerals in the region. Gold was one mineral found in the Great Plains region. People hoped to make a lot of money by mining gold.

प्र: 5 boys and 3 girls can together cultivate a 23 acre field in 4 days and 3 boys and 2 girls together can cultivate a 7 acre field in 2 days. How many girls will be needed together with 7 boys, if they cultivate 45 acres of field in 6 days? 1587 0

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

Answer: C) 2 Explanation: Let workdone 1 boy in 1 day be b and that of 1 girl be g From the given data, 4(5b + 3g) = 23 20b + 12g = 23 .......(a)   2(3b + 2g) = 7 6b + 4g = 7 ........(b)   Solving (a) & (b), we get b = 1, g = 1/4   Let number og girls required be 'p' 6(7 x 1 + p x 1/4) = 45 => p = 2.   Hence, number of girls required = 2

प्र: Buses start from a bus terminal with a speed of 20 km/hr at intervals of 10 minutes. What is the speed of a man coming from the opposite direction towards the bus terminal if he meets the buses at intervals of 8 minutes? 1973 0

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    5 kmph
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  • 2
    6 kmph
    सही
    गलत
  • 3
    7.5 kmph
    सही
    गलत
  • 4
    8 kmph
    सही
    गलत
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उत्तर : 1. "5 kmph"
व्याख्या :

Answer: A) 5 kmph Explanation: Let p be the speed of man in kmph According to the given data in the question, Distance travelled by bus in 10 min with 20 kmph == Distance travelled by man in 8 min with (20 + p) kmph in opposite direction => 20 x 10/60 = 8/60 (20 + p) => 200 = 160 + 8p => p = 40/8 = 5 kmph.

प्र: The New Deal ended in 1938 partly because 3155 0

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    national concern shifted to overseas aggression
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  • 2
    FDR was defeated in his bid for reelection
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  • 3
    the Supreme Court ruled most New Deal programs unconstitutional
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    गलत
  • 4
    FDR was stricken with polio
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उत्तर : 1. "national concern shifted to overseas aggression"
व्याख्या :

Answer: A) national concern shifted to overseas aggression Explanation: The New Deal was a series of programs, public work projects, financial reforms and regulations enacted in the United States 1933-36, in response to the Great Depression organized by Franklin Roosevelt in US.

प्र: Tennis rackets and ballpoint pens are 2699 0

  • 1
    complementary goods
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  • 2
    independent goods
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  • 3
    inferior goods
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    गलत
  • 4
    substitute goods
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उत्तर : 2. "independent goods"
व्याख्या :

Answer: B) independent goods Explanation: Tennis rackets and ballpoint pens are two independent goods. Since, one doesn't depend on the other.

प्र: Regarding the Magna Carta, which statement is false? 11358 0

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    The document assured all English citizens freedom of speech.
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  • 2
    The document required trial by a jury of one's peers.
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  • 3
    The meeting of the English Barons and King John occurred at Runnymede.
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    गलत
  • 4
    King John was forced to sign the document.
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उत्तर : 2. "The document required trial by a jury of one's peers."
व्याख्या :

Answer: B) The document required trial by a jury of one's peers. Explanation:

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