IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: Boy, man, uncle, fireman, grandfather are... 5915 0

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    Feminine titles
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    Masculine titles
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    Both Feminine and Masculine titles
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  • 4
    None of the above
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उत्तर : 2. "Masculine titles"
व्याख्या :

Answer: B) Masculine titles Explanation: As they are the titles of male gender, they are called as Masculine titles.

प्र: A number, when 35 is subtracted from it, reduces to its 80 percent. What is four - fifth of that number  ? 1562 0

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    175
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    140
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    135
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    95
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उत्तर : 2. "140"
व्याख्या :

Answer: B) 140 Explanation: x - 35 = 80x/100  => x = 175  => 4x/5 = 4x175/5 = 140.

प्र: If 25% of a number is subtracted from a second number, the second number reduces to its four-sixth. What is the ratio of the first number to the second number  ? 1618 0

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    4:3
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    2:3
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    3:2
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    5:3
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उत्तर : 1. "4:3"
व्याख्या :

Answer: A) 4:3 Explanation: Let the numbers be p & q q-p/4 = 4q/6 => q-4q/6 = p/4 => 2q/6 = p/4  => p/q = 4/3

प्र: Who has become the first Indian woman to scale Mount Everest for the fourth time  ? 1540 0

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    Anshu Jamsenpa
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    Dickey Dolma
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    Lhakpa Sherpa
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  • 4
    Malavath Purna
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उत्तर : 1. "Anshu Jamsenpa"
व्याख्या :

Answer: A) Anshu Jamsenpa Explanation: Anshu Jamsenpa, the Indian mountaineer from Arunachal Pradesh, has scripted history by becoming the first Indian woman to scale the Mount Everest for the fourth time. She will attempt a double ascent to the world’s highest peak to make it a total five successful climbs. If she is successful with her double ascent this time, Ms Jamsenpa will set a record five climbs of Mt Everest.

प्र: _________ has successfully created the country’s first smart grid project, which will generate power from renewable sources of energy. 1531 0

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    Indian Institutes of Technology
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    Indian Institutes of Engineering Science Technology
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    Indian Institutes of Space Science and Technology
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  • 4
    Indian Institutes of Management
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उत्तर : 2. "Indian Institutes of Engineering Science Technology"
व्याख्या :

Answer: B) Indian Institutes of Engineering Science Technology Explanation: The Indian Institute of Engineering Science and Technology (IIEST) has successfully created the country’s first smart grid project, which will generate power from renewable sources of energy.  The project will soon be inaugurated by President Pranab Mukherjee, IIEST Director Prof Ajoy Kumar Roy. The smart grid will be synchronised to generate power from solar, wind and vegetable waste resources, depending on the weather conditions and availability of waste products. It is the first of its kind in the country.

प्र: What is the theme of 2017 World Telecommunication and Information Society Day (WTISD)  ? 1049 0

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    Entrepreneurship for social impact
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    Reduce digital divide
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    D)  ? A) Entrepreneurship for social impact B) Reduce digital divide C)
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    ? A) Entrepreneurship for social impact B) Reduce digital divide C) Promote digital education for social welfare D) Big data for big impact
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उत्तर : 4. "? A) Entrepreneurship for social impact B) Reduce digital divide C) Promote digital education for social welfare D) Big data for big impact"
व्याख्या :

Answer: D) Big data for big impact Explanation: The World Telecommunication and Information Society Day (WTISD) is observed every year on May 17 to mark the anniversary of the signing of the first International Telegraph Convention (ITC) and the creation of the International Telecommunication Union (ITU). The purpose of the day is to help raise awareness of the possibilities that the use of the Internet and other information and communication technologies (ICT) can bring to societies and economies, as well as of ways to bridge the digital divide. The 2017 theme “Big Data for Big Impact” focuses on the power of Big Data for development and aims to explore how to turn imperfect, complex, often unstructured data into actionable information in a development context.

प्र: The simple interest on Rs. 25 for 4 months at the rate of 3 paise per rupee per month is : 2749 0

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    240 paise
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    Rs. 1.40
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    Rs. 2.20
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  • 4
    Rs. 3
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उत्तर : 4. "Rs. 3"
व्याख्या :

Answer: D) Rs. 3 Explanation: I = PTR/100I = 25 x 4 x 0.03/100I = 0.03 x 100 = 300 Ps = Rs. 3

प्र: A man could buy a certain number of notebooks for Rs.300. If each notebook cost is Rs.5 more, he could have bought 10 notebooks less for the same amount. Find the price of each notebook ? 2455 0

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    15
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    20
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    10
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    8
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उत्तर : 3. "10"
व्याख्या :

Answer: C) 10 Explanation: Let the price of each note book be Rs.x. Let the number of note books which can be brought for Rs.300 each at a price of Rs.x be y. Hence xy = 300 => y = 300/x (x + 5)(y - 10) = 300 => xy + 5y - 10x - 50 = xy =>5(300/x) - 10x - 50 = 0 => -150+x2+5x multiplying both sides by -1/10x => x2+15x-10x-150=0 => x(x + 15) - 10(x + 15) = 0 => x = 10 or -15 As x>0, x = 10.

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