What is the probability of selecting a white ball from a jar at random? (1) There are twice as many white balls as ball

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What is the probability of selecting a white ball from a jar at random?

(1) There are twice as many white balls as balls of all other colors combined.
(2) There are 30 more white balls than balls of all other colors combined.

Answer: A

Source: Veritas Prep
Source: — Data Sufficiency |