A study was made for the number of persons of different age group visited in a library in a week which is shown in the histogram. Study the histogram and answer the question given below.
The ratio of the number of persons in the age groups 15-20 years and 20-25 years together, to the number of persons in the age groups 30-35 years and 35-40 years together, is:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 14: 9.
| Understanding/Application |
|
Number of people in the age group of 15-20 years and 20-25 years together = 300 + 400 = 700 Number of people of the age group of 30-35 years and 35-40 years together = 350 + 100 = 450 |
| Required ratio = 700: 450 = 70: 45 = 14: 9 |