Question

20 people apply for a job 12 have a school certificate 2 have diploma if 2 have none how many of them have both

Answer 1

Answer:

4

Step-by-step explanation:

THE NO. OF PERSONS WHO HAVE BOTH IS

=TOTAL - NO. OF HAVING SCHOOL CERTIFICATE+NO. OF HAVING DIPLOMA CERTIFICATE+NO.OF HAVING NONE

=20-12+2+2

=20-16

=4

THEREFORE THE NO.OF PERSONS WHO ARE HAVING BOTH CERTIFICATES IS 4