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ps problem

by alltimeacheiver » Fri Feb 11, 2011 12:00 am
For any integer k greater than 1, the symbol k* denotes the product of all the fractions of
the form 1/t, where t is an integer between 1 and k, inclusive. What is the value of 5*/4*?
A. 5
B. 5/4
C. 4/5
D. 1/4
E. 1/5
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by Night reader » Fri Feb 11, 2011 12:20 am
k {k is integer} >1, k*=1/t * ...= 1/1* ...1/k; 5*=1/1 *1/2 *1/3 *1/4 *1/5=1/120; 4*=1/1 *1/2 *1/3 *1/4=24; 5*/4*=1/120 : 1/24=1/120 *24/1=24/120=1/5

answer E (sorry)
alltimeacheiver wrote:For any integer k greater than 1, the symbol k* denotes the product of all the fractions of
the form 1/t, where t is an integer between 1 and k, inclusive. What is the value of 5*/4*?
A. 5
B. 5/4
C. 4/5
D. 1/4
E. 1/5
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