The following table gives the enrollment in Higher Secondary Schools in 1978.…
2025
The following table gives the enrollment in Higher Secondary Schools in 1978. Study the table carefully and answer these questions.
What is the approximate percentage of the least number of schools for the classes of enrollment?
- A.
8.0
- B.
9.5
- C.
10.2
- D.
11.2
Show answer & explanation
Correct answer: B
Concept: To find what percentage one category of a table contributes to the whole, apply the percentage-of-total formula: Percentage = (Value of the category ÷ Grand total) × 100.
Application:
Compare the 'No. of Schools' figures across all nine enrollment classes; the class 160-179 has the smallest count, 517 schools.
Read off the grand total of schools given in the table: 5439.
Substitute into the formula: Percentage = (517 ÷ 5439) × 100.
Divide 517 by 5439 to get 0.0950 (to four decimal places), then multiply by 100 to get 9.50%, which rounds to 9.5%.
Cross-check: 9.5% of the grand total 5439 is 5439 × 0.095, approximately 516.7, which matches the 517 schools in the 160-179 class, confirming the percentage.
So the least-populated enrollment class (160-179, with 517 schools) accounts for approximately 9.5% of the total number of schools.