BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

People who can interact in 2 languages?

Expert replies
by gmattesttaker2 » Mon May 26, 2014 9:52 pm
Hello,

Can you please assist with this:

In a group of 25 people, only three languages are spoken - English, Spanish and German. If there is at least one person who speaks all the three languages, how many people can interact with each other in English and German?

1.4 people speak two languages but do not speak Spanish

2.One fifth of the group speaks more than one language.

OA: C


From the Venn diagram, we need e + g = ?

1) e = 4 . We still don't know g. Hence, in-suff.

2) d + e + f + g = 1/5(25)
=> d + e + f + g = 5 . In-suff

1 and 2:
e = 4 and d + e + f + g = 5

It is given that g >=1 . So will this be: d + 4 + f + 1 = 5 => d + f = 0?

I think I am going wrong somewhere. Can you please help?

Thanks a lot.

Regards,
Sri
Attachments
Venn diagram.png
Join the discussion
Source: — Data Sufficiency |

by theCodeToGMAT » Mon May 26, 2014 10:15 pm
{C}
Attachments
solution.jpg
R A H U L
Join the discussion

by theCodeToGMAT » Mon May 26, 2014 10:29 pm
gmattesttaker2 wrote:
It is given that g >=1 . So will this be: d + 4 + f + 1 = 5 => d + f = 0?
Yes, you are correct!
R A H U L
Join the discussion