GATE प्रश्न और उत्तर का अभ्यास करें

प्र: When a women sells 20 articles for Rs. 160, there is 40% loss. How many articles should she sell for Rs. 240 in order to earn 20% profit ? 3652 0

  • 1
    16
    सही
    गलत
  • 2
    15
    सही
    गलत
  • 3
    17
    सही
    गलत
  • 4
    14
    सही
    गलत
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उत्तर : 2. "15"
व्याख्या :

Answer: B) 15 Explanation: Given when she sells at Rs. 160 for 20 articles, she get 40% loss.   Then, to get 20% profit selling at Rs. 240 for let 'P' articles   => 1602060=240p120   => 120 x 160 x P = 20 x 70 x 240   => P =  15 articles.

प्र: Rs. 7444 is divided among 5 ladies, 3 gents and 3 girls. The ratio of share of a lady, a gents and a girl is 7: 4: 3. What is the share of gents ? 3635 0

  • 1
    Rs. 1595.14
    सही
    गलत
  • 2
    Rs. 1793.4
    सही
    गलत
  • 3
    Rs. 595.14
    सही
    गलत
  • 4
    Rs. 1551.5
    सही
    गलत
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उत्तर : 1. "Rs. 1595.14"
व्याख्या :

Answer: A) Rs. 1595.14 Explanation: Ratio of the share of a lady, a gents and a girl is 7 : 4 : 3No of ladies, gents and girls are 5, 3, 3Thus effective ratio of ladies, gents and girls is 7 x 5 : 4 x 3 : 3 x 3 = 35 : 12 : 9so part of gents = (12/56) x 7444 = Rs. 1595.142so part of 1 gents = 1595.142/3 = Rs. 531.71.

प्र: Choose the word which gives best meaning to the sentence from the given options. His recent success ______ him more arrogant than what he used to be 3635 0

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    make
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  • 2
    have make
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    गलत
  • 3
    was making
    सही
    गलत
  • 4
    has made
    सही
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उत्तर : 4. "has made"
व्याख्या :

Answer: D) has made Explanation: HIS RECENT SUCCESS HAS MADE HIM MORE ARROGANT THAN WHAT HE USED.

प्र: 80% of 900 + 162 x 4 x ? = 113 - 99 3630 0

  • 1
    0.5
    सही
    गलत
  • 2
    1
    सही
    गलत
  • 3
    4
    सही
    गलत
  • 4
    0
    सही
    गलत
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उत्तर : 1. "0.5"
व्याख्या :

Answer: A) 0.5 Explanation: 80x900/100 + 256 x 4 x ? = 1331 - 99 720 + 1024 x ? = 1232 ? = 1232 - 720/1024 ? = 512/1024 = 0.5 ? = 0.5

प्र: Which statement best describes Arteries? 3624 0

  • 1
    They have thin walls and transport blood away from the heart
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  • 2
    They have thick walls and transport blood toward the heart
    सही
    गलत
  • 3
    They have thin walls and transport blood toward the heart
    सही
    गलत
  • 4
    They have thick walls and transport blood away from the heart
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उत्तर : 4. "They have thick walls and transport blood away from the heart"
व्याख्या :

Answer: D) They have thick walls and transport blood away from the heart Explanation: Because arteries have to have thick walls for use of protection. Its when you get to veins where the walls get thinner. And the use of the heart is to pump blood to all of the cells and organs in the body so it would be to transport blood away from the heart. i.e.  Arteries = Away from the Heart Veins = Back to the Heart.

प्र: If the third day of a month is Tuesday, which of the following would be the 4th day before the 27th day of that month? 3623 1

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

Answer: B) Monday Explanation: Dates on which Tuesday fall are 3,10,17, and 24   Hence, the 27th day of the month will be (Tuesday + 3 days=)Friday   Required day of the month = Friday - 4 = Monday

प्र: The ratio of male and female in a city is 7 : 8 respectively and percentage of children among male and female is 25 and 20 respectively. If number of adult females is 156800, what is the total population of the city? 3622 0

  • 1
    4,12,480
    सही
    गलत
  • 2
    3,67,500
    सही
    गलत
  • 3
    5,44,700
    सही
    गलत
  • 4
    2,98,948
    सही
    गलत
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उत्तर : 2. "3,67,500"
व्याख्या :

Answer: B) 3,67,500 Explanation: Let the total population be 'p' Given ratio of male and female in a city is 7 : 8 In that percentage of children among male and female is 25% and 20% => Adults male and female % = 75% & 80% But given adult females is = 156800 => 80%(8p/15) = 156800 => 80 x 8p/15 x 100 = 156800 => p = 156800 x 15 x 100/80 x 8 => p = 367500 Therefore, the total population of the city = p = 367500

प्र: What is the probability of an impossible event? 3617 0

  • 1
    0
    सही
    गलत
  • 2
    -1
    सही
    गलत
  • 3
    0.1
    सही
    गलत
  • 4
    1
    सही
    गलत
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उत्तर : 1. "0"
व्याख्या :

Answer: A) 0 Explanation: The probability of an impossible event is 0. The event is known ahead of time to be not possible, therefore by definition in mathematics, the probability is defined to be 0 which means it can never happen.   The probability of a certain event is 1.

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