6.2 is what percent of 1000?  Choose the correct choice from the following:
A) 62 % B) 6.2 % C) 0.62 % D) 0.062 % E) 0.0062 %

Rationale: "10 % of 1000 is 100 . 6.2 is way less than 100 ( 10 % of 1000 ) . so it can not be 62 % of 1000 . eliminate option a 1 % of 1000 is 10 . 6.2 is less than 10 . so it cant be 6.2 % . eliminate option b ( 0.5 % ) i . e . half of 1 % of 1000 is 5 . but 6.2 is greater than 5 . . so it has to be greater than 0.5 % . . . hence answer is 0.62 % , answer : c"
Answer: C