If 45% of z is 90% of y and y is 75% of x, what percent of x is z?
Choose the most appropriate option:
A) 200 B) 160 C) 100 D) 65 E) 150

Rationale: ( 45 / 100 ) z = ( 90 / 100 ) y and y = ( 75 / 100 ) x i . e . y = ( 3 / 4 ) x i . e . ( 45 / 100 ) z = ( 90 / 100 ) * ( 3 / 4 ) x i . e . z = ( 90 * 3 ) x / ( 45 * 4 ) i . e . z = ( 1.5 ) x = ( 150 / 100 ) x i . e . z is 150 % of x answer : option e
Answer: E