Question

On an occasion 40% of the young men wear grey hats 60% of the remaining young men wear black hats. What percentage of the young men wears meither grey hats nor black hats ? (No young man wears both grey hat had black hat )
A. 0.12
B. 0.18
C. 0.24
D. 0.25

Answer 1

Correct Answer - C
(i) Let the total number of young men be 100.
(ii) Let the number of young men who attend the party be 100x.
(iii) Find number of young men who wear grey hats ans also find that of who wear black hats