Question

Out of 35 students Participating in a debate 10 are girls. The Probability that winner is a boy is ==???

Answer 1

NUMBER OF BOYS=35-10=25
SINCE PROBABILITY OF WINNING BOYS=NUMBER OF BOYS/TOTAL NUMBER OF STUDENT
=25/35
=5/7

Answer 2

The total number of students = 35
The number of girls = 10
The number of boys = 35-10 → 25

⇒ probability = total number boys / total number of students
⇒ probability = 25/35
⇒ 5/7
∴ 5/7 is the probability of winning of boys.