In a group of persons, 70% of the persons are male

• Percentages

In a group of persons, 70% of the persons are male and 30% of the persons are married. If two sevenths of males are married, what fraction of the females is single?

1. 2/7
2. 3/7
3. 2/3
4. 1/3

Answer

In a group, 70% are Males. So females = 30%

Now, two-seventh of males are married.

Married males = 2/7 * 70% = 20%

Total married persons = 30%

Married females = Total married - Married males = 30% - 20% = 10%

Total females = 30%

Out of every 3 females, one is married and two are unmarried.

The correct option is C.