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Knowing our Numbers Test - 13

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Knowing our Numbers Test - 13
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  • Question 1
    1 / -0
    Ten lakh = _________.
    Solution
    $$10$$ lakh $$=$$ $$1000000$$

    $$1$$ million $$=$$ $$1000000$$

    Therefore, $$ten\ lakh = 1\ million$$

    Hence, $$Op-B$$ is correct.
  • Question 2
    1 / -0
    9798745995 is written with periods in international system as __________.
    Solution
    The given number is $$9798745995$$.
    As per the international place value system, the number can be written as:
    $$9,798,745,995$$

    Hence, $$9798745995$$ is written with periods in international system as $$9,798,745,995$$.
  • Question 3
    1 / -0
    MMM stands for ____________.
    Solution
    M  stands for thousand in roman numerals
    $$\therefore$$ MMM= 3000
  • Question 4
    1 / -0
    The Roman numeral for the greatest two digit number is
  • Question 5
    1 / -0
    Ten million = __________.
    Solution
    1 million$$= 1000000$$
    ten million $$= 10\times 1000000$$.
                      $$= 10000000$$
                      $$= 1$$ crore
  • Question 6
    1 / -0
    In Roman numeration system, there are only ________ basic numerals.
    Solution
    There are seven basic Roman Numerals. 

    They are $$I, V, X, L, C, D$$ and $$M$$. 

    These numerals stand for the number $$1, 5, 10, 50, 100, 500$$ and $$1000 $$ respectively.

    So option D is the correct answer to fill the blank.
  • Question 7
    1 / -0
    The symbol that can never be repeated is  
    Solution
    The double of $$V (5)$$ in Roman numerals will be $$X (10)$$
    So only $$V$$ is the symbol that cannot be repeated.
  • Question 8
    1 / -0
    XC is same as __________.
    Solution
    We know that
    $$X=10, C=100$$

    Therefore,
    $$XC=100-10$$

    Hence, this is the answer.
  • Question 9
    1 / -0
    Round $$3500$$ to the nearest thousand.
    Solution
    3500 is halfway between 3000 and 4000. 
    So, 3500 is rounded up to 4000 because it has 5 as the last digit on neglecting the zeroes. Therefore, when it is 5 then it should be rounded to the higher number.

  • Question 10
    1 / -0
    Round off  $$231$$ to nearest $$100.$$
    Solution
    $$\Rightarrow$$  In number $$231$$,tens digit is $$3$$ 
    $$\Rightarrow$$  Its tens digit is 3, which is less than 5. So, we replace each of the tens and ones digits by $$0$$ and keep the other digits as they are to round off the given number to nearest hundreds.
    $$\therefore$$  Round of 231 to nearest 100 is $$200$$.
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