Hi Ani781,

The examples that you listed both use "conversational" English; unfortunately, neither is grammatically correct.

e.g. 1 : When the price goes up, the demand falls down.
e.g. 2 : The company where I work has gone bankrupt.

In the first example, the "intent" is to talk about an idea that is always true, not just at one point in time. There's also a parallelism issue. This sentence can be written in a number of ways, but here's a straight-forward way:

As the price goes up, the demand goes down.

In the second example, the noun is a "company", not a "location". In many cases, the way to "fix" a "where/when issue" is to remove the word (where or when) and replace it with the phrase "in which":

The company in which I work has gone bankrupt.

"The Ws" is an issue that usually shows up on the GMAT verbal section once, so be on the look out for it.

GMAT assassins aren't born, they're made,
Rich

Hi ani781,

That's exactly it! - "goes" should parallel "goes"

As the price goes up, the demand goes down.

There are other ways to write "in parallel" though:

eg. As the price rises, the demand falls.

GMAT assassins aren't born, they're made,
Rich