GMAT Question of the Day (July 25)

Math

The remainder when positive integer () is divided by 25 is 1 and the remainder when is divided by 7 is also 1. What is the least value of ?

A. 76
B. 101
C. 126
D. 151
E. 176

Question Discussion & Explanation
Correct Answer - E - (click and drag your mouse to see the answer)

Verbal

A zero-CO2 U.S. economy can be achieved within the next thirty to fifty years without the use of nuclear power. The U.S. renewable energy resource base is vast and practically untapped. Available wind energy resources in 12 Midwestern and Rocky Mountain states equal about 2.5 times the entire electricity production of the United States. Given that we can satisfy our electricity needs by harnessing only 40% of the wind energy resources in these 12 states, it is extremely likely that we will be able to do away with CO2.

Which of the following would be most useful to evaluate the above argument?

A. What is the amount of wind energy resources available in rest of the states in the United States?
B. Are there any other renewable energy resources such as solar power, which can be used?
C. With the use of current technologies, what proportion of electricity generated through wind energy can be stored for use at future times when wind may not be blowing?
D. Are there strong corporate lobbies which will strongly oppose any move to substitute non-renewable sources of energy?
E. What proportion of wind energy is available only at inaccessible areas?

Question Discussion & Explanation

Correct Answer - E - (click and drag your mouse to see the answer)

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