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Railway Express - RRB NTPC Test 223
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Railway Express - RRB NTPC Test 223
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  • Question 1/10
    1 / -0.33
    If a mirror is placed on the line MN, then which of the answer figures is the correct image of the given question figure?
    Solutions
    After observing the given diagram carefully, option figure D is the correct mirror image of the given question figure.

    Hence, option D is the correct answer.
  • Question 2/10
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    You are given a question and two statements. Identify which of the statements is/are necessary/sufficient to answer the question.

    Eight persons A, B, C, D, E, F, G and H are sitting anticlockwise around a circular table facing the centre of the table at equal distances between them. Who faces north direction?

    Statements:

    1). B and E are not adjacent to each other.

    2). G is sitting in the Southeast.

    Solutions

    Statement:

    1. B and E are not adjacent to each other. (its not sufficient.)

    Statement:

    2. G is sitting in the Southeast. (its alone sufficient.)

    so, B faces north.

    so, Statement 2 alone is sufficient.

    Hence, option A is the correct answer.

  • Question 3/10
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    If 73 + 46 = 14 and 95 + 87 = 19, then 62 + 80 = ?
    Solutions
    In 73 + 46 = 14 
    (7 - 3) = 4; (4 + 6) = 10; 10 + 4 = 14
    In 95 + 87 = 19 
    (9 - 5) = 4; (8 + 7) = 15; 4 + 15 = 19
    so,
    62 + 80 =?
    (6 - 2) = 4; (8 + 0) = 8; 4 + 8 = 12
    Thus, 62 + 80 = 12
    Hence option A is the correct answer.
  • Question 4/10
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    The value of [cosec260° + sec260° – cot260° + tan230°] will be:
    Solutions
    [cosec260° + sec260° – cot260° + tan230°]

    = (2/√3)2+ 22 – (1/√3)2 + (1/√3)2

    = 4/3 + 4 – 1/3 + 1/3

    = 16/3

    = 
  • Question 5/10
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    Directions For Questions

    Directions: Study the graph carefully and answer the following questions. The following data given is in lakh rupees.

    ...view full instructions

    In how many years was the income of the company more than the average income of the given years?

    Solutions

    Here, Average income of company in the given years

    =

    =

    = 25 lakh rupees

    Therefore, there are 2 years, 2018 & 2019 in which income is more than the average income over the years.

  • Question 6/10
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    A man travels for 5 hours 15 minutes. If he covers the first half of the journey at 60 km/h and rest at 45 km/h. Find the total distance travelled by him.
    Solutions
    Let the total distance covered by a man be 180x km.
    LCM of (60, 45) = 180

    Since     he covers the first half of the journey at 60 km/h.
    Therefore,
    Time taken to cover the 90x distance at the speed of 60 km/hr = 90x/60 = 1.5x hour

    Time taken to cover remaining 90x distance at the speed of 45 km/hr = 90x/45 = 2x hour

    But,     he travels for 5 hours 15 minutes.

    5 hour 15 minute = 5 + 15/60 = 5.25 hour

    Therefore,
    1.5x + 2x = 5.25
    x = 5.25/3.5
    x =  525/350
    x = 1.5

    So, total distance = 180x = 180 × 1.5 = 270 km
  • Question 7/10
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    Which vitamin is helpful in protecting cell membrane?
    Solutions
    • Vitamin E is helpful in protecting cell membrane. It protects red blood cells and lung cells from oxidative damage, lowering the risk of cardiovascular diseases. 
    • Vitamin E is a group of eight fat soluble compounds that include four tocopherols and four tocotrienols.
    • It is found in many foods including vegetable oils, cereals, meat, poultry, eggs, fruits, vegetables, and wheat germ oil.
  • Question 8/10
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    Every hot object emits _______
    Solutions
    • Every hot objects emits infrared rays.
    • Since heat travels from hotter to colder region and moreover energy in the electron make then expand- away from their orbit,
    • So when they resume to their orbit, the energy must go somewhere, resulting into emission of infrared rays.
  • Question 9/10
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    Who is the author of the book "Clash of Civilisation"?
    Solutions
    • Samuel P. Huntington authored the book "The Clash of Civilizations".
    • He was an American political scientist, adviser and academic.
    • He is best known for his 1993 theory, the "Clash of Civilizations", of a post–Cold War new world order.
    • He explains in this book that how clashes between civilizations are the greatest threat to world peace but also how an international order based on civilizations is the best safeguard against war.
    • This book is a classic study of post-Cold War international relations.
  • Question 10/10
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    What is the height of the  Sanchi Stupa?
    Solutions

    • The Great Stupa at Sanchi is one of the most important Buddhist monuments reflecting gem of Buddhist art and architecture.

    • It is located in Bhopal.

    • The height of the Great Stupa is around 54 feet.

    • The Great Stupa at Sanchi is crowned by a chhatra, a parasol-like structure, intended to honour and protect the precious relics.

    • The Sanchi Stupa was constructed in the honour of Lord Buddha by Emperor Ashoka.

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