Comprehension

Directions: These questions are based on the following data. Study it carefully and answer the questions that follow.

In a school having 400 students boys and girls are in the ratio of 3:5 respectively. The students speak Hindi, English or both the languages. 12% of the boys speak only Hindi, 22% of the girls speak only English. 24% of the total students speak only Hindi and the number of boys speaking both the languages is six times the number of boys speaking only Hindi.

Number of girls speaking only Hindi is what percent of the total number of students speaking only Hindi?

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CSIR-CLRI JSA 2024 Official Paper-I (Held On: 16 Feb, 2025)
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  1. 38.25
  2. 31.25
  3. 78.25 
  4. 81.25

Answer (Detailed Solution Below)

Option 4 : 81.25
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Detailed Solution

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Given:

Total students = 400

Boys = 150, Girls = 250

12% of boys speak only Hindi = 18 boys

24% of total students speak only Hindi = 96 students

∴ Girls speaking only Hindi = 96 − 18 = 78 girls

Required:

What percent is 78 (girls speaking only Hindi) of 96 (total only Hindi speakers)?

Formula used:

(Part / Whole) × 100

(78 / 96) × 100 = 81.25%

Final Answer:

81.25%

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