Practice Question and Answer

Q:

If bc+ab+ca=abc, then the value of $$ {b+c\over {bc(a-1)}}+{a-c\over {ac(b-1)}}+{a+b\over {ab(c-1)}}$$ is

1947 0

  • 1
    2
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    0
    Correct
    Wrong
  • 4
    $$ {-1\over {2}}$$
    Correct
    Wrong
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Answer : 2. "1"

Q: Which of the following is a renewable source of energy 1947 0

  • 1
    Natural gas
    Correct
    Wrong
  • 2
    Coal
    Correct
    Wrong
  • 3
    Wind
    Correct
    Wrong
  • 4
    Oil
    Correct
    Wrong
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Answer : 3. "Wind"
Explanation :

Answer: C) Wind Explanation: The energy sources that are constantly being replenished, such as sunlight, wind, and water. This means that we can use them as much as we want, and we do not have to worry about them running out. Additionally, renewable energy sources are usually much more environmentally friendly than fossil fuels. Overall, they release very few chemicals, like carbon dioxide, that can harm the environment. Most of this energy comes from fossil fuels, such as coal, oil, and natural gas. These are nonrenewable energy sources, which means that if we use them all up, we can never get more during our lifetime. Fossil fuels also contribute greatly to global climate change by releasing carbon dioxide into the air when they are burned.

Q: What molecule carries genetic information? 1947 0

  • 1
    RNA
    Correct
    Wrong
  • 2
    DNA
    Correct
    Wrong
  • 3
    Proteins
    Correct
    Wrong
  • 4
    Nucleotides
    Correct
    Wrong
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Answer : 2. "DNA"
Explanation :

Answer: B) DNA Explanation: The nucleus of a cell contains chromosomes, which carry genetic information in a long molecule called DNA. Genes are regions of DNA that carry the code to control a particular cell activity or the production of a particular protein.

Q:

Three pipes A, B and C can fill a cistern in 6 hours. After working at it together for 2 hours, C is closed and A and B can fill the remaining part in 7 hours. The time taken by C alone to fill the cistern is_

1947 0

  • 1
    10 hours
    Correct
    Wrong
  • 2
    12 hours
    Correct
    Wrong
  • 3
    14 hours
    Correct
    Wrong
  • 4
    16 hours
    Correct
    Wrong
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Answer : 3. "14 hours"

Q:

Who was the third President of India, who died during his tenure?

1947 0

  • 1
    Sanjeev Reddy
    Correct
    Wrong
  • 2
    Dr. Zakir Hussain
    Correct
    Wrong
  • 3
    Dr. V. V. Giri
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "Dr. Zakir Hussain"

Q: Ryder Cup is related with which sports? 1947 0

  • 1
    Football
    Correct
    Wrong
  • 2
    Golf
    Correct
    Wrong
  • 3
    Badminton
    Correct
    Wrong
  • 4
    Cricket
    Correct
    Wrong
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Answer : 2. "Golf"
Explanation :

Answer: B) Golf Explanation:

Q:

Mac number is related

1947 0

  • 1
    At the speed of sound
    Correct
    Wrong
  • 2
    At the speed of the ship
    Correct
    Wrong
  • 3
    At the speed of the plane
    Correct
    Wrong
  • 4
    At the speed of the spacecraft
    Correct
    Wrong
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Answer : 3. "At the speed of the plane"

Q:

The cost price of an article is Rs. 480. If it is sold at a profit of 12.5 percent, what will be the selling price of the article?

1947 0

  • 1
    Rs. 500
    Correct
    Wrong
  • 2
    Rs.560
    Correct
    Wrong
  • 3
    Rs. 540
    Correct
    Wrong
  • 4
    Rs.492.5
    Correct
    Wrong
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Answer : 3. "Rs. 540"

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