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 Posted: Fri Nov 30, 2007 8:40 pm Post subject: Question |
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What is the cube root of w ?
(1) The 5th root of w is 64.
(2) The 15th root of w is 4.
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is
sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient. |
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samirpandeyit62
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| Posted: Fri Nov 30, 2007 10:18 pm Post subject: |
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What is the cube root of w ?
we only need value of w to solve this one
(1) The 5th root of w is 64.
w= 64^5 SUFF
(2) The 15th root of w is 4.
w= 4^15 SUFF
BTW in both cases the cube root would be an ineteger only
coz if we express 64 & 4 in powers of 2, then it would result in an exponent that is a multiple of 3
D
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Samir |
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Guest
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| Posted: Sat Dec 01, 2007 5:10 am Post subject: |
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!  .... thank you very much. |
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