Practice Question and Answer

Q: Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats ? 2815 0

  • 1
    1 : 2 : 3
    Correct
    Wrong
  • 2
    2 : 3 : 4
    Correct
    Wrong
  • 3
    3: 4 : 5
    Correct
    Wrong
  • 4
    4 : 5 : 6
    Correct
    Wrong
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Answer : 2. "2 : 3 : 4"
Explanation :

Answer: B) 2 : 3 : 4 Explanation: Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. Seats for Mathematics, Physics and Biology in a school are 5x, 7x and 8x. There is a proposal to increase these seats by 40%, 50% and 75% respectively. Then Seats for Mathematics, Physics and Biology in a school will be 1.4 X 5x, 1.5 X 7x and 1.75 X 8x and ratio will be 7 : 10.5 : 14  => 2:3:4.

Q:

चेरा राजवंश ने भारत के किन राज्यों पर शासन किया?

2814 0

  • 1
    कर्नाटक और गोवा
    Correct
    Wrong
  • 2
    केरल और तमिलनाडु
    Correct
    Wrong
  • 3
    केरल और कर्नाटक
    Correct
    Wrong
  • 4
    तमिल और आंध्र
    Correct
    Wrong
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Answer : 2. "केरल और तमिलनाडु"

Q: An atom bomb based upon the principal of ________ 2814 0

  • 1
    Nuclear fission
    Correct
    Wrong
  • 2
    Nuclear fussion
    Correct
    Wrong
  • 3
    Controlled chain reaction
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 1. "Nuclear fission"
Explanation :

Answer: A) Nuclear fission Explanation:

Q: What among following is used to produce artificial rain ? 2814 0

  • 1
    copper oxide
    Correct
    Wrong
  • 2
    carbon monoxide
    Correct
    Wrong
  • 3
    silver iodide
    Correct
    Wrong
  • 4
    silver nitrate
    Correct
    Wrong
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Answer : 3. "silver iodide"

Q: The Dul Hasti Power Station is based on which one of the following rivers? 2813 0

  • 1
    Beas
    Correct
    Wrong
  • 2
    Chenab
    Correct
    Wrong
  • 3
    Ravi
    Correct
    Wrong
  • 4
    Sutlej
    Correct
    Wrong
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Answer : 2. "Chenab"
Explanation :

Answer: B) Chenab Explanation:

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