-
Amrabdelnaby
- Master | Next Rank: 500 Posts
- Posts: 137
- Joined: Fri Nov 13, 2015 11:01 am
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Dear All,
I solved the following in 4 mintues.
I did a venn diagram, broke it down to partitions, a,b,c,d,e,f,g.
Created many equations and solved for g.
it took so long because i created so many equations.
could you please provide me with a less complicated more straight forward solution?
thank you
Of the 300 subjects who participated in an experiment using virtual reality therapy to reduce their fear of heights, 40% experienced sweaty palms, 30% experienced vomiting and 75% experienced dizziness. If all of the subjects experienced atleast one of these effects and 35% of the subjects experienced exactly of these effects, how many of the subjects experienced only one of these subjects?
A)105
B) 125
C) 130
D) 180
E) 195
I solved the following in 4 mintues.
I did a venn diagram, broke it down to partitions, a,b,c,d,e,f,g.
Created many equations and solved for g.
it took so long because i created so many equations.
could you please provide me with a less complicated more straight forward solution?
thank you
Of the 300 subjects who participated in an experiment using virtual reality therapy to reduce their fear of heights, 40% experienced sweaty palms, 30% experienced vomiting and 75% experienced dizziness. If all of the subjects experienced atleast one of these effects and 35% of the subjects experienced exactly of these effects, how many of the subjects experienced only one of these subjects?
A)105
B) 125
C) 130
D) 180
E) 195
