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外语
A, B, C, D, E are five real numbers. A is 50% greater than B. B is 20% less than C. C is 2 times as D. D is 3 greater than E. If
A, B, C, D, E are five real numbers. A is 50% greater than B. B is 20% less than C. C is 2 times as D. D is 3 greater than E. If
admin
2020-10-11
31
问题
A, B, C, D, E are five real numbers. A is 50% greater than B. B is 20% less than C. C is 2 times as D. D is 3 greater than E. If E = 2, then what is the value of A?
选项
答案
12
解析
根据题目可以得出:A=(1+50%)B;B=(1-20%)C;C=2D;D=E+3;E=2。所以,A=12。
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