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7th Class Mathematics Simple Equations Question Bank Simple Equation

  • question_answer
    If two supplementary angles differ by \[{{44}^{o}},\] then one of the angles is ____.

    A)  \[{{102}^{o}}\]                  

    B)         \[{{65}^{o}}\]        

    C)         \[{{112}^{o}}\]      

    D)                     \[{{72}^{o}}\]

    Correct Answer: C

    Solution :

    Let first angle be x. Then, other angle will be \[({{44}^{o}}+x)\] Now, \[x+({{44}^{o}}+x)={{180}^{o}}\Rightarrow 2x={{136}^{o}}\Rightarrow x={{68}^{o}}\]  \[\therefore \] First angle \[={{68}^{o}}\] and second angle \[={{(68+44)}^{o}}={{112}^{o}}\].


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