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MATH

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The chess club had 14 members at the beginning of the year and the membership increased by 50% by the end of the year?
a: how many members were there at the end of the year?
b: By the end of the next year there were only 14 members. What percent decrease was this?

  • MATH - ,

    1.5 * 14 = 21

    b.

    21 - 14 = 7

    7/21 = 0.33333 = 33.3%

  • MATH - ,

    a) 1.50*14=?
    b) 14=21(1+i)
    2/3= 1+i
    i=-1/3 or 33.3 percent decrease

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