30% of the men are more than 25 years old and 80% of the men are less than or equal to 50 years old. 20% of all men play football. If 20% of the men above the age of 50 play football, what percentage of the football players are less than or equal to 50 years?
60%
70%
80%
90%
Explanation:
Let total number of men = 100
Then,
20 men play football.
80 men are less than or equal to 50 years old.
Remaining 20 men are above 50 years old.
Number of football players above 50 years old
=20×$\dfrac{20}{100}$=4
Number of football players less than or equal to 50 years old
$=20-4=16$
Required percentage$=\dfrac{16}{20}×100=80%$