The histogram shows the scores of each participant in a game from a total of 100 participants. 
How many more participants scored 60-79 than 40-59?
A. 35 participants
B. 22 participants
C. 13 participants
D. 19 participants
Answer: C
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A hypothetical management science problem requires us to find the cheapest "supercircuit" in a graph. Three algorithms are available: Algorithm 1, Algorithm 2, and Algorithm 3.Algorithm 2 sometimes produces the cheapest supercircuit but most of the time it produces a supercircuit that is only close to being the cheapest. The amount of time it takes to carry out Algorithm 2 is: 1 second for a graph with 1 vertex, 2 seconds for a graph with 2 vertices, . . . 5 seconds for a graph with 5 vertices, and so on. Algorithm 2 is
A. an approximate and inefficient algorithm. B. an optimal and efficient algorithm. C. an optimal and inefficient algorithm. D. an approximate and efficient algorithm. E. none of these
Refer to the weighted voting system 
and the Banzhaf definition of power. (The four players are P1, P2, P3 and P4.)In this weighted voting system, which players have veto power?
A. P1 only B. P1 and P2 only C. All of the players D. P1, P2 and P3 only E. None of the players
Write the decimal number as a percentage.0.923
A. 923% B. 0.0923% C. 92.3% D. 0.923%
Find the roots of the equations.
= 
A. 
B. 
C. 56
D. 