gmat prep数学prep里有这样一道数学题.for all the positive integers m, m(这个m外面有方框)=3m if m is odd, m(方框)=1/2m if m is even. Then which of the following is equivalent to 9(方框)*6(方框)?答案包括:81,54,36,27
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![gmat prep数学prep里有这样一道数学题.for all the positive integers m, m(这个m外面有方框)=3m if m is odd, m(方框)=1/2m if m is even. Then which of the following is equivalent to 9(方框)*6(方框)?答案包括:81,54,36,27](/uploads/image/z/11459968-16-8.jpg?t=gmat+prep%E6%95%B0%E5%AD%A6prep%E9%87%8C%E6%9C%89%E8%BF%99%E6%A0%B7%E4%B8%80%E9%81%93%E6%95%B0%E5%AD%A6%E9%A2%98.for+all+the+positive+integers+m%2C+m%28%E8%BF%99%E4%B8%AAm%E5%A4%96%E9%9D%A2%E6%9C%89%E6%96%B9%E6%A1%86%29%3D3m+if+m+is+odd%2C+m%28%E6%96%B9%E6%A1%86%29%3D1%2F2m+if+m+is+even.+Then+which+of+the+following+is+equivalent+to+9%EF%BC%88%E6%96%B9%E6%A1%86%EF%BC%89%2A6%EF%BC%88%E6%96%B9%E6%A1%86%EF%BC%89%3F%E7%AD%94%E6%A1%88%E5%8C%85%E6%8B%AC%EF%BC%9A81%2C54%2C36%2C27)
gmat prep数学prep里有这样一道数学题.for all the positive integers m, m(这个m外面有方框)=3m if m is odd, m(方框)=1/2m if m is even. Then which of the following is equivalent to 9(方框)*6(方框)?答案包括:81,54,36,27
gmat prep数学
prep里有这样一道数学题.
for all the positive integers m, m(这个m外面有方框)=3m if m is odd, m(方框)=1/2m if m is even. Then which of the following is equivalent to 9(方框)*6(方框)?
答案包括:81,54,36,27,18
小弟的理解是,9*3乘以6的二分之一=81.
但是答案是27.小弟十分困惑,还望指教:)
gmat prep数学prep里有这样一道数学题.for all the positive integers m, m(这个m外面有方框)=3m if m is odd, m(方框)=1/2m if m is even. Then which of the following is equivalent to 9(方框)*6(方框)?答案包括:81,54,36,27
答案应该是81.
但是,请仔细审题,如果答案的选项是:27(这个27外面有方框),那么正确答案应该是27(方框).因为81=27(方框)=27×3.
是81了, GMAT数学不可能拐那么多弯子的
相信自己,错的不是你,错的是答案。
准确的说答案是方框27,方框27=81