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RRC Group D Mix Test - 256
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RRC Group D Mix Test - 256
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  • Question 1/10
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    A mixture contains alcohol and water in the ratio 4 : 3. If 5 litre of water is added to the mixture, the ratio becomes 4: 5. The quantity of alcohol in the given mixture is–

    Solutions

     

  • Question 2/10
    1 / -0

    Which one of the following is the chemical name of heavy water?

    Solutions

    Heavy water ( D2O) is also deuterium oxide. It is water composed of deuterium, the hydrogen isotopes with mass double that of ordinary hydrogen, and oxygen. Thus, heavy water has a molecular weight of about 20, whereas ordinary water has a molecular weight of about 18. The presence of deuterium gives the chemical different nuclear properties.

     

  • Question 3/10
    1 / -0

    If & means '+', $  means '-', # means ' ÷ 'and % means 'x',then the value of

    9 % 3 & 22 $ 52 & 85 # 17 is-

    Solutions

    9 % 3 & 22 $ 52 & 85 # 17
    After substituting signs,
    9×3+22-52+85÷17
    \( \Rightarrow 9 \times3+22-52+\frac{85}{17} \)
    \( \Rightarrow 27+22-52+5 \)
    \( \Rightarrow 2 \)

     

  • Question 4/10
    1 / -0

    Each of the question below consists of one question and some statements given below it. Read all the statements carefully and find out which of the statement is/are sufficient to answer the given question. 

    How many brothers does Dinesh have?

    I. Dinesh’s mother has three children.

    II. Dinesh has two sisters.

    Solutions

    From Statement I: The gender of rest of the two children of Dinesh’s mother is not confirmed.
    From Statement II: It is not known whether Dinesh has any brother or not.
    From Statement I and II together, it is confirmed that his mother has three children and out of three, two are girls and the left one is Dinesh, so it means Dinesh has no brother.

     

  • Question 5/10
    1 / -0

    In the given figure, how many males’ shoes are not of clothes?

    Solutions

    Males shoes are 32 and 39 but those are not clothes.
    So, the answer is 39.

     

  • Question 6/10
    1 / -0

    If a piece of metal is heated to temperature θ and then allowed to cool in a room which is at temperature  θo , the graph between the temperature T of the metal and time t will be closest to-

    Solutions

     

  • Question 7/10
    1 / -0

    When a manufacturer allows 10% commission on the wholesale price of Rs 5000 for a particular item, he earns a profit of 25 %. How much profit does the manufacturer earn on that item ?

    Solutions

    Selling Price = Marked Price × (100-commission) %
    = 5000 × (100-10) %
    = 5000 × 90%
    = 4500
    Selling Price = Cost Price × (100+Profit) %
    4500 = Cost Price × (100+25) %
    4500 = Cost Price × 125%
    So, Cost Price = 4500 × 4/5 = 3600
    Therefore,
    Profit = SP-CP = 4500-3600 = 900

     

  • Question 8/10
    1 / -0

    Arrange the following ions in increasing order of polarizing power?

    Solutions

    is the correct order of increasing polarizing power of the given cations.

     

  • Question 9/10
    1 / -0

    The Theme of World Environment Day 2018 was:

    Solutions

    The theme for World Environment Day 2018, hosted by India, was “Beat Plastic Pollution”, which was a call to action for all of us to come together to combat one of the great environmental challenges of our time

     

  • Question 10/10
    1 / -0

    A and B entered into a partnership investing Rs. 16000 and Rs. 12000 respectively. After 3 months A withdrew Rs. 5000 while B invested Rs. 5000 more. After 3 more months, C joins the business with a Capital of Rs. 21000. The share of B exceeds that of C, out of a total profit of Rs. 26400 after one year by: Rs. 26400 after one year by:

    Solutions

    Ratio of the investments of A, B and C
    = (16000 x 3 + 11000 x 9) : (12000 x 3 + 17000 x 9) :  21000 x 6
    = 7 : 9 : 6
    Hence, required amount  = 9−6 / 22 × 26400 = Rs.3600

     

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