7th Class Mathematics Integers Question Bank Integer

  • question_answer
    The following number line shows the temperature in degree Celsius \[{{(}^{o}}C)\] at different places on a particular day. Find P, Q and R.
    (i) The temperature difference between the hottest and the coldest places is P.
    (ii)  The temperature difference between Yamuna Nagar and Pathankot is Q .
    (iii) The temperature difference between Pathankot and Kashmir is R.

    A)
    P Q R
    \[{{31}^{o}}C\] \[{{8}^{o}}C\] \[{{5}^{o}}C\]
                   

    B)
    P Q R
    \[{{30}^{o}}C\] \[{{18}^{o}}C\] \[{{6}^{o}}C\]
                   

    C)
    P Q R
    \[{{31}^{o}}C\] \[{{18}^{o}}C\] \[{{6}^{o}}C\]
                   

    D)
    P Q R
    \[{{30}^{o}}C\] \[{{7}^{o}}C\]   \[{{8}^{o}}C\]

    Correct Answer: C

    Solution :

              Difference in temperature between the hottest and coldest places \[={{24}^{o}}C-{{(-7)}^{o}}C\] \[={{(24+7)}^{o}}C={{31}^{o}}C\]                                        (ii) Difference in temperature between Yamuna Nagar and Pathankot            \[={{17}^{o}}C-{{(-1)}^{o}}C={{(17+1)}^{o}}C={{18}^{o}}C\] (iii) Temperature difference between Pathankot and Kashmir \[=-{{1}^{o}}C-{{(-7)}^{o}}C={{(-1+7)}^{o}}C={{6}^{o}}C\]


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