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The average score of boys in an examina...

The average score of boys in an examination of a school is 71 and that of girls is 73. The average score of school in that examinations is 71.8. The ratio of the number of boys to the number of girls appeared in the examination, is

A

`3:2`

B

`3:4`

C

`1:2`

D

`2:1`

Text Solution

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The correct Answer is:
To find the ratio of the number of boys to the number of girls who appeared in the examination, we can follow these steps: ### Step 1: Define Variables Let: - \( n_1 \) = number of boys - \( n_2 \) = number of girls - Average score of boys \( x_1 = 71 \) - Average score of girls \( x_2 = 73 \) - Overall average score \( x = 71.8 \)
To find the ratio of the number of boys to the number of girls who appeared in the examination, we can follow these steps: ### Step 1: Define Variables Let: - \( n_1 \) = number of boys - \( n_2 \) = number of girls - Average score of boys \( x_1 = 71 \) - Average score of girls \( x_2 = 73 \) ...
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