In a group of students 100 students know Hindi, 50 know English and 25 know both. Each of the students knows either Hindi or English. How many students are there in the group?
Total students = 25
% of students good in English = 72%
No. of students good in English = 72% of 25
= 72/100 × 25
= 1800/100
= 18
No. of students not good...
No. This information is not sufficient to determine which of the traits − blood group A or O − is dominant. This is because we do not know about the...
Let U be the set of all students who took part in the survey.
Let T be the set of students taking tea.
Let C be the set of students taking coffee.
Accordingly,...
(i) Premchand had picked up the lives of ordinary people and certain social issues and depicted them in his novel ‘Sewasadan’.
(ii) Sewasadan deals mainly with the poor condition of women...