GMAT DS ratio problem - help

[smalltalk]

Data Sufficiency Problem

Q. On a site-seeing tour, the ratio of the number of women to the number of children is 5 to 2.
What is the number of men?

1. the ratio of the number of children to the number of men is 5 to 11.
2. the number of women is less than 30.

The answer is C, both statements together are sufficient.

Please explain how?

[the_egonomist]

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[JackOfAllTrades]

Originally Posted by smalltalk

Data Sufficiency Problem

Q. On a site-seeing tour, the ratio of the number of women to the number of children is 5 to 2.
What is the number of men?

1. the ratio of the number of children to the number of men is 5 to 11.
2. the number of women is less than 30.

The answer is C, both statements together are sufficient.

Please explain how?

Using (1) The combined ratio of women:children:men is 25:10:22. So number of women, children and men can be 25x, 10x and 22x respectively, where x=1,2,3 and so on.
Possible values (25,10,22), (50,20,44) and so on. Cannot solve by (1) alone.

Using (2) Other values are unknown.

If you use both the statements, then the number of women less than 30 is in only 1 case, ie (25,10,22).

Thus the answer is C.

[rmbt]

Originally Posted by smalltalk

Data Sufficiency Problem

Q. On a site-seeing tour, the ratio of the number of women to the number of children is 5 to 2.
What is the number of men?
The answer is C, both statements together are sufficient.

Please explain how?

There is a separate GMAT section dedication for GMAT questions.

Please use search to locate the relevant threads, continue here:

http://www.pagalguy.com/forum/gmat-a...ssions-40.html (GMAT Data Sufficiency Discussions)


Make full use of DI thread in the exam resources section.

All the best.