Question : The number of pupils in a class is 55. The ratio of the number of male pupils to the number of female pupils is 5 : 6. The number of female pupils is:
Option 1: 11
Option 2: 25
Option 3: 30
Option 4: 35
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Correct Answer: 30
Solution :
Given: The number of pupils in a class = 55
Ratio of male and female = 5 : 6
Let the number of male and female pupils be 5x and 6x, respectively.
So, the total number of pupils = 5x + 6x = 11x
According to the question,
11x = 55
$\therefore$ x = 5
Number of female pupils = 6x = 6 × 5 = 30
Hence, the correct answer is 30.
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