JJ 348

straw520fish · 发表于 2011-10-20 03:41:25

348-<205>

PS：一个公司25%的total income 来自 mail contact, t%的total income来自telephone contact, 剩下的是 personal contact. 现在知道telephone income有150,000， personal income 比total income少225,000. 问t %多少？

A.25% B.50%C.33 1/3% D.66 2/3% E.70% （五个选项是肯定的）

tele=150k

total income=300k

P income=total-225,000

Tele+p+0.25T=total

150,000+T-225,000+0.25T=T,
It seems that the number is not right?

How can the 300k be arrived?
Anybody can help me out?

P income=total-225,000

Tele+p+0.25T=total

150,000+T-225,000+0.25T=T,
It seems that the number is not right?

How can the 300k be arrived?
Anybody can help me out?

margie · 发表于 2011-10-20 03:56:28

25% -> mc 75000

225000 t% ->tc 150000

1-25%-t% ->pc

75000=25%*T ====> T=300000

t%=150000/300000=50%

straw520fish · 发表于 2011-10-20 04:01:17

Thank you so much, wish you success on GMAT exam and application!

JJ 348

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