Data Sufficiency

In year X, 12.2 percent of the Gross Domestic Product (GDP) came from tourism-related industries compared with 12.6 percent the previous year. If GDP was the same for both years, what was the GDP in year X?

(1) GDP was $12 million less in year X than it was the previous year.
(2) In the previous year, GDP was $3 billion.

The OA is D.

Can any expert explain this DS question please? I don't understand it. Thanks.

LUANDATO wrote:In year X, 12.2 percent of the Gross Domestic Product (GDP) came from tourism-related industries compared with 12.6 percent the previous year. If GDP was the same for both years, what was the GDP in year X?

(1) GDP was $12 million less in year X than it was the previous year.
(2) In the previous year, GDP was $3 billion.

The OA is D.

Can any expert explain this DS question please? I don't understand it. Thanks.

Call the GDP in Year X: 'G'.

Year X: .122G comes from tourism-related activities
Previous Year: .126G comes from tourism-related activities

Rephrase: What is the value of G?

S1: .122G = .126G - 12; Clearly we can solve this for G - Sufficient.
S2: This tells us that G = 3 billion - Sufficient.

The answer is D