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Quantitative Aptitude (MTS)

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Indian Economy - Understanding the basics of Indian economic system

The ratio of boys and girls in a school is 35: 39. If the average of boys and girls in the school is 740, then the number of girls in the school is:

780

740

700

720

- We are given the ratio of boys to girls in the school, which is 35:39.

- We need to find the number of girls when the average number of students (boys and girls) is 740.

- Let's assume the number of boys is 35x and the number of girls is 39x.

- The average of both boys and girls is given as (35x + 39x) / 2 = 740.

- So, 74x / 2 = 740, which simplifies to 74x = 1480.

- Solving for x, we get x = 20.

- Thus, the number of girls (39x) is 39 * 20 = 780.

- ? Option 1: 780 is the correct answer.