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5th Class Mathematics Decimals and Fractions Question Bank Fractions and Decimals

  • question_answer
    The value of 30.5 - 30.4 + 30.3 - 30.2 + 30.1 - 30 + 29.9 - 29.8 + 29.7 - 29.6 + 29.5 - 29.4 + 29.3 - 29.2 + 29.1 - 29.0=____________.

    A)  0.8                              

    B)  0.7                  

    C)  0.6                  

    D)         1.8                              

    Correct Answer: A

    Solution :

    We have, \[\left( 30.5-30.4 \right)+\left( 30.3-30.2 \right)~\] \[+\left( 30.1-30 \right)+\left( 29.9-29.8 \right)+\left( 29.7-29.6 \right)~\] \[+\left( 29.5-29.4 \right)+\left( 29.3-29.2 \right)+\left( 29.1-29.0 \right)~~\] \[=0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1=0.8~~\]


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