It is given that 5% increase in X always means 3% increase in Y and 5% increase in Y always implies 2. 5% increase in Z. Q. Relationship between X and Z could be
a) 1. 05 X = 1. 025 Z
b) 0. 5 X = 0. 25 Z
c) 25 X = 7. 5 Z
d) 250 X = 213 Z
e) None of these