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प्र: The ratio between present ages of Renuka and Sony is 5 : 4 . 4 years ago, Sony's age was 24 years. What will be Renuka's age after 5 years ? 1563 0

  • 1
    25
    सही
    गलत
  • 2
    30
    सही
    गलत
  • 3
    35
    सही
    गलत
  • 4
    40
    सही
    गलत
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उत्तर : 4. "40"
व्याख्या :

Answer: D) 40 Explanation: Present age of Sony = 24 + 4 = 28 years After 5 years Renuka's age = 7×5 + 5 = 40 years

प्र: An owner of a Dry fruits shop sold small packets of mixed nuts for Rs. 150 each and large packets for Rs. 250 each. One day he sold 5000 packets, for a total of Rs. 10.50 lakh. How many small packets were sold ? 1563 0

  • 1
    2000
    सही
    गलत
  • 2
    3000
    सही
    गलत
  • 3
    2500
    सही
    गलत
  • 4
    3500
    सही
    गलत
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उत्तर : 1. "2000"
व्याख्या :

Answer: A) 2000 Explanation: Let 's' be the number of small packets and 'b' the number of large packets sold on that day.   Therefore, s + b = 5000 ... eqn (1)   Each small packet was sold for Rs.150.Therefore, 's' small packets would have fetched Rs.150s.   Each large packets was sold for Rs.250.Therefore, 'b' large packets would have fetched Rs.250b.   Total value of sale = 150s + 250b = Rs. 10.5 Lakhs (Given)   Or 150s + 250b = 10,50,000 ... eqn (2)   Multiplying equation (1) by 150, we get 150s + 150b = 7,50,000 ... eqn (3)   Subtracting eqn (3) from eqn (2), we get 100b = 3,00,000Or b = 3000   We know that s + b = 5000So, s = 5000 - b = 5000 - 3000 = 2000.   2000 small packets were sold.

प्र: Currency of Peru is 1563 0

  • 1
    Chilean Peso
    सही
    गलत
  • 2
    Euro
    सही
    गलत
  • 3
    Sol
    सही
    गलत
  • 4
    Dollar
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उत्तर : 3. "Sol"
व्याख्या :

Answer: C) Sol Explanation: Peru is a country in South America. Lima is the capital city of Peru. Sol is the currency of Peru.

प्र: The age of Manisha and Sudeshna are in the ratio of 5 : 6 respectively. After 8 years the ratio  of their ages will be 7 : 8. What is the difference of their ages ? 1562 0

  • 1
    6
    सही
    गलत
  • 2
    4
    सही
    गलत
  • 3
    8
    सही
    गलत
  • 4
    10
    सही
    गलत
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उत्तर : 2. "4"
व्याख्या :

Answer: B) 4 Explanation: Let the age of Manisha and Sudeshna is 5x and 6x years respectively. According to the given data, 5x+8/6x+8 = 7/8 42x + 56 = 40x + 64 x = 4 Required Difference of their ages = (6 × 4)  –  (5 × 4) = 4 years.

प्र: Who has been appointed as the Election Commissioner of India  ? 1562 0

  • 1
    S. Y. Quraishi
    सही
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  • 2
    Sunil Arora
    सही
    गलत
  • 3
    H. S. Brahma
    सही
    गलत
  • 4
    Nasim Zaidi
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उत्तर : 2. "Sunil Arora"
व्याख्या :

Answer: B) Sunil Arora Explanation:

प्र: A ball is thrown vertically upward from the ground. It crosses a point at the height of 25 m twice at an interval of 4 seconds. The ball was thrown with the velocity of 1561 0

  • 1
    18 m/s
    सही
    गलत
  • 2
    25 m/s
    सही
    गलत
  • 3
    30 m/s
    सही
    गलत
  • 4
    36 m/s
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उत्तर : 3. "30 m/s"
व्याख्या :

Answer: C) 30 m/s Explanation: The interval between object pass the same point is 4 sec. That means in 2 sec, object reaches the top and in next 2 sec, it again reaches the same point. By the info given, we can find the velocity of that point by using : v=u+(-gt) 0= u - 10×2 u = 20 Then the velocity at 25m is 20m/sec. so the initial velocity is -v2 = u2 + (-2gh)400 = u2 - 2x 10 x 25u2 = 900 => u = 30 m/s

प्र: Which of the following is a renewable source of energy 1561 0

  • 1
    Natural gas
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  • 2
    Coal
    सही
    गलत
  • 3
    Wind
    सही
    गलत
  • 4
    Oil
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उत्तर : 3. "Wind"
व्याख्या :

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.

प्र: A merchant commences with a certain capital and gains annually at the rate of 30 per cent. At the end of 2 years he has worth Rs 10,000. What was the original capital? 1561 0

  • 1
    Rs. 4987
    सही
    गलत
  • 2
    Rs. 5148
    सही
    गलत
  • 3
    Rs. 5917
    सही
    गलत
  • 4
    Rs. 6254
    सही
    गलत
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उत्तर : 3. "Rs. 5917"
व्याख्या :

Answer: C) Rs. 5917 Explanation: Let the Original capital amount be Rs. P Given after 2 years the amount is Rs. 10000 Rate of interest = 30% According to the question, P x 130100 x 130100 = 10000=> P = 1000000169 = 5917 Therefore, the capital amount P = Rs. 5917

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