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Railway Express - RRB NTPC Test 197
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Railway Express - RRB NTPC Test 197
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  • Question 1/10
    1 / -0.33
    Six toys T1, T2, T3, T4, T5 and T6 and kept around a circular path (not necessarily in the same order). T4 is second to the left of T6. T5 is to the immediate left of T2. T1 is second to the right of T3. T3 is to the immediate right of T4 .

    If we start counting the number of toys towards the left of T5, then how many toys are kept between T6 and T5?

    Solutions

    According to the given information the arrangement will be:

    Clearly, 1 toys are kept between T6 and T5.

    Hence, option D is the correct answer.

  • Question 2/10
    1 / -0.33
    In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives.

    Solutions
    The pattern is:
    92 + 62 = 117
    82 + 22 = 68
    72 + 32 = 58

    Hence, option D is the correct answer.
  • Question 3/10
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    Three position of a cube are shown below.

    Which letters will come on two faces marked “1 and 2”?
    Solutions
    Since it is clear from the 1st two figure ‘R’ is neither opposite to ‘Q’ nor to ‘T’.
    So, correlating the 3rd figure with the 1st two, we get:
    P is opposite to T
    S is opposite to R
    U is opposite to Q
    ‘1’ and ‘2’ will be ‘Q’ & ‘R’.
    Hence, option B is the correct answer.
  • Question 4/10
    1 / -0.33
    The percentage of metals in a mine of lead ore is 64%. The percentage of silver is % of the metals and rest is lead. If the quantity of the ore extracted from mine is 13000 kg, then what is the quantity of lead in this ore?
    Solutions

    Given,

    Total ore extracted = 13000 kg.

    Metals in this ore = 13000 × 64% = 8320 kg.

    Silver in these metals = 8320 × % = 104 kg.

    Therefore, quantity of lead = 8320 – 104 = 8216 kg.

  • Question 5/10
    1 / -0.33
    The ratio of present ages of Ratna and Shantanu is 5:4. After 19 years the ratio of their ages will be 10:9. What is Ratna's present age?
    Solutions
    Let the age of Ratna and Shantanu be 5x and 4x.
    After 19 years-

    ⇒ 45x + 171 = 40x + 190
    ⇒ 45x − 40x = 190 − 171
    ⇒ 5x = 19

    Therefore,
    Ratna's age = 5x = 19 years

    Short Trick:
    Present age = 5:4
    And ratio of age after 19 years = 10:9
    Here, the difference between the ratio of respective age = 10 − 5 = 5 ratio
    and 9 − 4 = 5 ratio
    It means, 5 ratio represents = 19 years
    So ratna present age =19 years
  • Question 6/10
    1 / -0.33
    After repairing a scooter runs at a speed of 65 km/h and before repairing it runs at speed of 52 km/h. It covers a certain distance in 8 hours after repairing. How much time will it take to cover the same distance before repairing?
    Solutions

    Distance covered in 8 hours after repairing

    = 65 × 8 = 520 km

    Speed before repairing = 52 km/hr

    Required time = 520/52= 10 hours.

  • Question 7/10
    1 / -0.33
    Which of the following saint was active in West Bengal?
    Solutions

    * Bhakti Saint Chaitnay Mahaprabu belonged to Bengal.

    * He was a 15-16th century Bhakti saint. He followed the philosophy of Bheda-abedha. He was a vaishnavist Saint.

    * He also expounded the Vaishnava school of Bhakti yoga based on Bhagavata Purana and Bhagavad Gita.

    * He also popularised the chanting of ‘Hare Krishna Mantra’ as a devotion hym to Lord Krishna and also composed the Siksastakam in Sanskrit.

    * ‘Nilachaley Mahaprabhu’ was a biographical film made on the life of Chaitnay Mahaprabhu and was directed by Kartik Chattopadhyay.

  • Question 8/10
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    The patterns formed by different groups of stars are called _________.
    Solutions

    A constellation is a group of stars that appears to form a pattern or picture.

    • In 1922, the International Astronomical Union (IAU) formally accepted the modern list of 88 constellations.

    • Orion, Leo, Aquarius, Cygnus, Gemini etc are examples of Constellations.

    • Galaxy is a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.

  • Question 9/10
    1 / -0.33
    In India, the National Pollution Control Day is observed on________.
    Solutions

    * In India, the National Pollution Control Day is observed on 2 December.

    * It is celebrated every year.

    * The day is observed in order to honor the lives that were lost because of the Bhopal gas calamity.

    * The Bhopal gas tragedy happened on the night of 2nd and 3rd December of 1984.

    * The tragedy occurred because of the unintentional discharge of the poisonous Methyl Isocyanate (MIC) and some other chemicals released from the Union Carbide Chemical Plant in Bhopal.

    * The Bhopal gas tragedy was identified as the biggest industrial pollution disaster in world history.

  • Question 10/10
    1 / -0.33
    Who proposed the cell theory?
    Solutions

    • Matthias Schleiden and Theodor Schwann proposed the cell theory.

    • The Cell Theory states that all living organisms are composed of cells.

    • They are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.

    • Cells are the basic unit of structure in all organisms and also the basic unit of reproduction.

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