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प्र: Assertive sentences examples list. 2588 0

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उत्तर :
व्याख्या :

An assertive sentence is a sentence that state, assert, or declare something. It means it is a simple statement making thing. As it declares something, is also called as Declarative sentence.       Examples of assertive sentence or statements ::   1. Anamika loves him very much.   2. He picks her daily.   3. Attitude is everything.   4. The sun sets in the west.   5. She likes roses.   6. He is a student.   7. Karthik planned a tour.   8. Peacock is a beautiful bird.   9. India is our country.   10. Joel want to be a doctor.

प्र: Fill in the blank with suitable preposition in the following sentence.   ____ the two I prefer tea. 2587 0

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    From
    सही
    गलत
  • 2
    In
    सही
    गलत
  • 3
    Between
    सही
    गलत
  • 4
    Among
    सही
    गलत
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उत्तर : 3. "Between"
व्याख्या :

Answer: C) Between Explanation: Between the two I prefer tea is the correct sentence with suitable preposition.

प्र: The Opium war id held between which two countries  ? 2586 0

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    England and France
    सही
    गलत
  • 2
    China and Russia
    सही
    गलत
  • 3
    Russia and England
    सही
    गलत
  • 4
    China and England
    सही
    गलत
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उत्तर : 4. "China and England"
व्याख्या :

Answer: D) China and England Explanation: The Opium Wars were two wars in the mid-19th century involving Anglo-Chinese disputes over British trade in China and China’s sovereignty. The disputes included the First Opium War (1839–1842) and the Second Opium War (1856–1860).

प्र: A box contains 4 different black balls, 3 different red balls and 5 different blue balls. In how many ways can the balls be selected if every selection must have at least 1 black ball and one red ball ? 2584 0

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    24 - 1
    सही
    गलत
  • 2
    2425-1
    सही
    गलत
  • 3
    (24-1)(23-1)25
    सही
    गलत
  • 4
    None
    सही
    गलत
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उत्तर : 3. "(24-1)(23-1)25"
व्याख्या :

Answer: C) C Explanation: It is explicitly given that all the 4 black balls are different, all the 3 red balls are different and all the 5 blue balls are different. Hence this is a case where all are distinct objects.   Initially let's find out the number of ways in which we can select the black balls. Note that at least 1 black ball must be included in each selection.   Hence, we can select 1 black ball from 4 black ballsor 2 black balls from 4 black balls.or 3 black balls from 4 black balls.or 4 black balls from 4 black balls.   Hence, number of ways in which we can select the black balls   = 4C1 + 4C2 + 4C3 + 4C4= 24-1 ........(A)   Now let's find out the number of ways in which we can select the red balls. Note that at least 1 red ball must be included in each selection.   Hence, we can select 1 red ball from 3 red ballsor 2 red balls from 3 red ballsor 3 red balls from 3 red balls   Hence, number of ways in which we can select the red balls= 3C1 + 3C2 + 3C3=23-1........(B)   Hence, we can select 0 blue ball from 5 blue balls (i.e, do not select any blue ball. In this case, only black and red balls will be there)or 1 blue ball from 5 blue ballsor 2 blue balls from 5 blue ballsor 3 blue balls from 5 blue ballsor 4 blue balls from 5 blue ballsor 5 blue balls from 5 blue balls.   Hence, number of ways in which we can select the blue balls= 5C0 + 5C1 + 5C2 + … + 5C5= 25..............(C)   From (A), (B) and (C), required number of ways=  2524-123-1

प्र: The circumference of a circular base of Cylinder is 44 cm and its hight is 15 cm. Then the volume of the cylinder is? 2584 0

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    2759 cub. cm
    सही
    गलत
  • 2
    2247 cub. cm
    सही
    गलत
  • 3
    2614 cub. cm
    सही
    गलत
  • 4
    2311 cub. cm
    सही
    गलत
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उत्तर : 4. "2311 cub. cm"
व्याख्या :

Answer: D) 2311 cub. cm Explanation: Given Circumference of a circular base of a cylinder = 44 cm We know that Circumference of a circle = 2πr = 44⇒r = 22π Now given the height of a cylinder h = 15 cm Volume of a cylinder V = πr2h = π22π215 = 22 x 22 x 153.14 = 2311 cm3.

प्र: Most important weather phenomena occur in the 2583 0

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    Troposphere
    सही
    गलत
  • 2
    Stratosphere
    सही
    गलत
  • 3
    Ionosphere
    सही
    गलत
  • 4
    Thermosphere
    सही
    गलत
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उत्तर : 4. "Thermosphere"
व्याख्या :

Answer: D) Thermosphere Explanation: Most important weather phenomena occur in the layer of Thermosphere. Most of the weather phenomenon occur in the layer of Troposphere.

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उत्तर :
व्याख्या :

Let the speed of Kaushik be Sk and speed of Piyush be Sp and let the time taken by Piyush be t second then,  SkSp = 800t+20600t = 23since given ratio   t = 20 s   Speed of Piyush = Sp = 600/20 = 30 m/s   and    Speed of Kaushik = 800/40 = 20 m/s

प्र: Size of the primary memory of a pc ranges between 2582 0

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    256 kb to 640 kb
    सही
    गलत
  • 2
    64 kb to 256 kb
    सही
    गलत
  • 3
    256 kb to 512 kb
    सही
    गलत
  • 4
    2 kb to 8 kb
    सही
    गलत
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उत्तर : 1. "256 kb to 640 kb"
व्याख्या :

Answer: A) 256 kb to 640 kb Explanation: Size of the primary memory of a PC ranges between 256 KB to 640 KB.

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