The pie chart illustrates the market share of five major smartphone manufacturers (Company A, B, C, D, E) in a particular region. If the total market size is 50 million units, approximately how many more units does Company A sell than Company D? [Imagine a pie chart] Company A: 35% Company B: 25% Company C: 20% Company D: 10% Company E: 10%

The correct answer to the question "The pie chart illustrates the market share of five major smartphone manufacturers (Company A, B, C, D, E) in a particular region. If the total market size is 50 million units, approximately how many more units does Company A sell than Company D? [Imagine a pie chart] Company A: 35% Company B: 25% Company C: 20% Company D: 10% Company E: 10%" is Option B: 12.5 million units.

The other options — A) 7.5 million units, C) 17.5 million units, D) 25 million units — are incorrect for this GMAT Exam Prep question. As explained above: Company A sells 35% of 50 million = 0.35 * 50 = 17.5 million units. Company D sells 10% of 50 million = 0.10 * 50 = 5 million units. The difference is 17.5 - 5 = 12.5 million units.