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Exercise your brain a little.

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GiveATry

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电梯直达

楼主

发表于 2007-10-21 23:10:06 | 只看该作者回帖奖励

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What numbers represent A,B,C,D, and E ?www.ddhw.com

A,B,C,D, and E are five numbers that are greater than 10 and less than 100.

A-B-C-D-E=-35

A+B+C+D+E=217

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GiveATry

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5^#

楼主| 发表于 2007-10-23 22:42:40 | 只看该作者

回复： I must humbly beg [:>]

I’m afraid I made a fool of myself. I must humbly beg master’s forgiveness. I was not thinking clearly when I posed the problem.

To punish myself for my carelessness, I am going without lunch today.

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salmonfish

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地板

发表于 2007-10-23 01:48:54 | 只看该作者

my teacher told me.......

I locked my brain in my drawer, because my teacher in high school once told us "for linear simultaneous equations, if number of variables is larger than the number of linear-independent eqns, don't use your brain, for that there will be more solutions than you can handle (infinite)".