The strangth of class decreased every year at 10%. If strangth of class was 70000    2 year ago . Find present strangth.

Posted by Rathi Kajal (Mar 20, 2017 11:02 p.m.) (Question ID: 4279)

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  • Ans. Strength of class 2 years ago = 70000

    Decreasing rate = 10%

    Strength after 1 year = {tex}70000 - {70000\times 10\over 100} = 70000-7000{/tex}

    = 63000

    Present Strength = {tex}63000-{63000\times 10\over 100} = 63000-6300{/tex}

    =56700

    Answered by Naveen Sharma (Mar 21, 2017 7:09 a.m.)
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