Practice Question and Answer

Q: In computer short cut keys, F4 key is used to 3493 2

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    To display the items in the active list
    Correct
    Wrong
  • 2
    To display help
    Correct
    Wrong
  • 3
    To display system properties dialog box
    Correct
    Wrong
  • 4
    To display desktop
    Correct
    Wrong
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Answer : 1. "To display the items in the active list"
Explanation :

Answer: A) To display the items in the active list Explanation: To display the items in the active list.

Q: Is B2+ Paramagnetic or Diamagnetic? 3492 0

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Answer :
Explanation :

B2+ is a Paramagnetic.  The filled orbitals are σ(1s)22, σ∗(1s)22, σ(2s)22, σ∗(2s)22. The half-filled orbitals are π(2pxx) and π(2pyy). Since it posses 2 unpaired electrons, it is Paramagnetic in nature.

Q: A merchant buys two articles for Rs.600. He sells one of them at a profit of 22% and the other at a loss of 8% and makes no profit or loss in the end. What is the selling price of the article that he sold at a loss ? 3491 0

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    Rs. 404.80
    Correct
    Wrong
  • 2
    Rs. 536.80
    Correct
    Wrong
  • 3
    Rs.440
    Correct
    Wrong
  • 4
    Rs. 160
    Correct
    Wrong
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Answer : 1. "Rs. 404.80"
Explanation :

Answer: A) Rs. 404.80 Explanation: Let C1 be the cost price of the first article and C2 be the cost price of the second article.Let the first article be sold at a profit of 22%, while the second one be sold at a loss of 8%. We know, C1 + C2 = 600.The first article was sold at a profit of 22%. Therefore, the selling price of the first article = C1 + (22/100)C1 = 1.22C1The second article was sold at a loss of 8%. Therefore, the selling price of the second article = C2 - (8/100)C2 = 0.92C2. The total selling price of the first and second article = 1.22C1 + 0.92C2. As the merchant did not make any profit or loss in the entire transaction, his combined selling price of article 1 and 2 is the same as the cost price of article 1 and 2. Therefore, 1.22C1 + 0.92C2 = C1+C2 = 600As C1 + C2 = 600, C2 = 600 - C1. Substituting this in 1.22C1 + 0.92C2 = 600, we get1.22C1 + 0.92(600 - C1) = 600or 1.22C1 - 0.92C1 = 600 - 0.92*600or 0.3C1 = 0.08*600 = 48or C1 = 48/(0.3) = 160.If C1 = 160, then C2 = 600 - 160 = 440.The item that is sold at loss is article 2. The selling price of article 2 = 0.92*C2 = 0.92*440 = 404.80.

Q:

Directions: In each of these questions, three words are related in some way. The relationship among the words in the question can best be represented by one of the five diagrams (a), (b), (c), (d) and (e) given below. Mark your answer accordingly.

Iron, Lead, Nitrogen  

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    Correct
    Wrong
  • 2

    Correct
    Wrong
  • 3

    Correct
    Wrong
  • 4

    Correct
    Wrong
  • 5

    Correct
    Wrong
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Answer : 5. "

"

Q: The total number of students in a school is 1224. If the number of girls in the school is 600, what is the respective ratio of the total number of boys to the total number of girls in the school? 3488 1

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    26:25
    Correct
    Wrong
  • 2
    21:17
    Correct
    Wrong
  • 3
    18:13
    Correct
    Wrong
  • 4
    5:4
    Correct
    Wrong
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Answer : 1. "26:25"

Q: Base of a right-angle triangle is 9 cm and its area is 81 sq cm. Find its height. 3487 0

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    36 cm
    Correct
    Wrong
  • 2
    9 cm
    Correct
    Wrong
  • 3
    27 cm
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 4. "None of these"

Q:

What was India's Rank in Asian Athletic Championship in 2019? 

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    3rd
    Correct
    Wrong
  • 2
    4th
    Correct
    Wrong
  • 3
    2nd
    Correct
    Wrong
  • 4
    None these
    Correct
    Wrong
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Answer : 2. "4th "
Explanation :

The 23rd edition of the Asian Athletics Championship was held in Doha, Qatar in 2019 in which 595 athletes from 43 nations participated. It was a 4-day long event. India secured 4th position in the medals tally (3 Gold, 7 Silver, and 7 Bronze) which was topped by Bahrain followed by China and Japan.

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