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Integers Test - 32

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Integers Test - 32
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which of the following expressions is not true ?
    Solution
    Given $$(A)2>-1$$    $$(B)-5<-2$$  $$(C)0<7$$  $$(D)-6>-5$$ 

    out of the given expressions only option $$D$$ is wrong as $$-6$$ is less than $$-5$$
  • Question 2
    1 / -0
    $$(-37) + 6 =?$$
    Solution
    $${\textbf{Step -1: Solve using BODMAS rule}}{\textbf{.}}$$
                     $$\Rightarrow\left( { - 37} \right) + 6$$ $$ =  - 37 + 6$$
                                              $$ =  - 31$$

    $${\textbf{Hence, the correct option is B.}} $$

  • Question 3
    1 / -0
    $$(-42) + (-35) =?$$
    Solution
    $$(-42) + (-35)$$
    $$ = -42 – 35$$
    $$=-(42+35)=-77$$
    Option $$(C)$$ is the correct answer
  • Question 4
    1 / -0
    Mark against the correct answer in the following:
    $$(-36)\div (-9) = ?$$
    Solution
    We have:
    $$-36 \div(-9)$$

    $$\dfrac{-36}{-9}$$

    $$=4$$
  • Question 5
    1 / -0
    Mark against the correct answer in the following:
    $$0 \div (-5) = ?$$
    Solution
    We have $$0 \div (-5)$$
    And we know that if we divide $$0$$ by any number we get the result as $$0$$
    So, $$0\div (-5)=0$$
  • Question 6
    1 / -0
    Which of the following is the multiplicative identity for an integer a?
    Solution
    Option (b) is correct; 1 is the multiplicative identity for an integer a.
  • Question 7
    1 / -0
    $$(-25) \times[6+4]$$ is not same as
    Solution
    Option (c) is correct.
    $$(-25) \times[6+4] \neq(-25) \times 6 \times 4$$
  • Question 8
    1 / -0
    $$-35 \times 107$$ is not same as
    Solution
    given expression : $$-35\times 107$$

    this can be written as
    $$-35\times (100+7)$$      or
    $$-35\times 7+100$$         or
    $$(-30-5)\times 107$$       

    Option $$C$$ is correct as
    $$-35 \times 107 \neq-35 \times 7+100$$
  • Question 9
    1 / -0
    $$(-10) \times(-5) \times (-2)$$ is equal to
    Solution
    Option (d) is correct 
    $$\Rightarrow(-10 \times-5 \times (-2)=-100$$
  • Question 10
    1 / -0
    Encircle the odd one of the following
    Solution
    Option (d) is correct.
    (a) $$\dfrac{(-100)}{5}=-20$$
    (b) $$\dfrac{(-81)}{9}=-9$$
    $$(c)$$$$\dfrac{(-75)}{5}=-15$$
    $$(d)$$$$\dfrac{(-32)}{9}=\dfrac{-32}{9}$$

    By the above calculation, we can see that option d is not an integer while other options are integers. Thus, option d is different from all others.
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