pp-T1-DS200

[Huang Hsin-Yi]

200.
Of the 1,000 companies responding to a certain survey, what percent indicated that they had a business recovery plan?

(1) 200 of the companies did not indicate that they had a business recovery plan.

(2) The number of companies that indicated that they had a business recovery plan was 4 times the number that did not indicate that they had a business recovery plan.

Ans:D

設indicate&had business=x
indicate& not had business=y
not indicate =z
x+y+z=1000 問 x/1000
(1)Z=200 -insufficient
(2)x=4*Z-insufficient

combine (1)(2)
x=800
therefore I got answer C
Am I wrong?

[amazingslim]

應該只有indicate that they had a plan
和not indicate that they had a plan
回答就分yes or no
題目問what percent say yes?
(1)say no的公司200=>say yes公司800=>say yes公司80%
(2)y=4n=>4n/5n=>say yes公司80%

[Huang Hsin-Yi]

原來是這樣
我題目給想複雜了