英文的數學問題

🎓 學業台小學及中學教育

mandyman0324

2007-08-01 9:03 pm

If A is greater than B by10percent and C is less than B by 10percent then
A=?

andC=?

回答 (2)

Elektra

2007-08-01 11:56 pm

✔ 最佳答案

Since A is greater than B by10percent ,
so A=(1+10%)B =1.1B

Since C is less than B by 10percent,
so C=(1-10%)B =0.9B

參考: Myself

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Thomas

2007-08-01 9:07 pm

Suppose the value of B is y
A = (1 + 10%) y = 1.1 y
C = (1 - 10%) y = 0.9 y
B = y

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