Passage:
The adjoining Histogram shows frequency distribution of ages of 20 teachers in a school. Based on Historgram choose correct option for question no 70-72.
No. of teachers in age group 20 to 40 is
Answer & explanation
Correct answer: option 3
No. of teachers in age group 20-30 = 3
No. of teachers in age group 30-40 = 5
Therefore,
No. of teachers in age group 20-40 = 3 + 5 = 8