8th Class Mathematics Related to Competitive Exam Question Bank Arithmetic

  • question_answer
    Asha can stitch 'x' shirts in \[A=P\left( 1+\frac{{{R}_{1}}}{100} \right)\left( 1+\frac{{{R}_{2}}}{100} \right)....\left( 1\frac{{{R}_{n}}}{100} \right),\] minutes. At this rate, how many shirts can she stitch in \[C.I.=P\left[ \left( 1+\frac{{{R}_{1}}}{100} \right)\left( 1+\frac{{{R}_{2}}}{100} \right)....\left( 1+\frac{{{R}_{n}}}{100} \right)-1 \right]\]th of an hour?

    A) 50x                       

    B)  \[5\frac{1}{4}\] 

    C) 60x                       

    D)  \[A=P{{\left( 1+\frac{R}{100} \right)}^{5}}\left( 1+\frac{\frac{R}{4}}{100} \right)\]

    Correct Answer: C

    Solution :

    No. of shirts Time
    x \[\frac{1}{6}\]
    s \[\frac{1}{6}\]
    \[{{m}_{1}}\] It is direct variation \[{{w}_{1}}\] \[{{d}_{1}}\]


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