Question

1. Out of a group of 50 teachers in a higher secondary school 30 teach mathematics,
20 teach English and 25 teach Science. 10 teach both mathematics and science, and
none teach mathematics and English.
1) How many teach science and English?
Number of teachers teach science and english
2) How many teach only English?​

Answer 1

Answer:

science+eng = 25+20= 45 teacher

20 teach only English