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[GMAT math practice question]
For a positive integer n, f(n) and g(n) are defined as follows
f(n)={0 , (n is a multiple of 5) 1 , (n is not a multiple of 5)
g(n)={0 , (n is a multiple of 7) 1 , (n is not a multiple of 7)
Moreover, h(n) is defined as (1 - f(n))(1 - g(n)).
What is the value of h(3) + h(6) + h(9) + … + h(2004) + h(2007)?
A. 13
B. 19
C. 38
D. 57
E. 152
For a positive integer n, f(n) and g(n) are defined as follows
f(n)={0 , (n is a multiple of 5) 1 , (n is not a multiple of 5)
g(n)={0 , (n is a multiple of 7) 1 , (n is not a multiple of 7)
Moreover, h(n) is defined as (1 - f(n))(1 - g(n)).
What is the value of h(3) + h(6) + h(9) + … + h(2004) + h(2007)?
A. 13
B. 19
C. 38
D. 57
E. 152
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