In a group of 250 persons, 40% are males and 60% are females. If 30 more females join the group, then what will be the percentage of females in the new group? (Correct to 2 decimal places)
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 64.29%.
The number of females in the original group = (60/100) × 250 = 150.
The number of females in the new group = 150 + 30 = 180.
The total number of persons in the new group = 250 + 30 = 280.
The percentage of females in the new group = (180/280) × 100 = 64.29%.
Therefore, the percentage of females in the new group is 64.29%.