GMAT Problem Solving
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Source: Manhattan
Level: 3
A university professor received a government grant of M dollars to be spent on research during the year. 25 percent of the grant was appropriated by the university, so the professor used 20 percent of what was left to buy lab equipment. What percent of the original sum of M dollars was either given to the university or spent on lab equipment?
- A 0.25
- B 0.4
- C 0.45
- D 0.47
- E 0.5