Question

In an examination 70% candidates passed in prelims and 55% candidates passed in Mains. If 62% candidates passed in both these subjects, then what per cent of candidates failed in both the exams?

Answer 1

Answer:

from which class u r bro or siso..

Answer 2

Answer:

P(prelims passed)=P(A)=70%

P(mains passed)=P(B)=55%

P(passed both)=P(A^B)=62%

P(passed any)=P (A¿B)= P(A)+P(B)-P(A^B)

=70%+55%-62%

=63%

there failed both= 100%- passed any

=100%-63%

=37%

Step-by-step explanation:

hope this help you