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06 Mar 2017, 01:16
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
65% (01:43) correct
35%
(01:48)
wrong
based on 365
sessions
History
Date
Time
Result
Not Attempted Yet
Let \(A=6^{20}\), \(B=2^{60}\), and \(C=4^{50}\).
Which of the following is true?
A. A < B < C
B. A < C < B
C. B < A < C
D. B < C < A
E. C < B < A
Which of the following is true?
A. A < B < C
B. A < C < B
C. B < A < C
D. B < C < A
E. C < B < A
06 Mar 2017, 14:27
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A = 6^20, can be written as 3^20 * 2^20
B = 2^60, can be written as 4^20 * 2^20
C = 4^50, can be written as 4^20 * 2^60
Therefore, A < B < C
Answer: A. A<B<C
B = 2^60, can be written as 4^20 * 2^20
C = 4^50, can be written as 4^20 * 2^60
Therefore, A < B < C
Answer: A. A<B<C
General Discussion
06 Mar 2017, 14:42
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OA it's not correct, C > B for sure because 2^60<2^100. The answer is or E or B. Since 6^20=3^20 x 2^20 (A) and 2^20 x 2^80 (C) i believe that 2^80 > 3^20 so to me the correct answer is E.
