Total number of students in a class is 95. if the total number of girls in the class is 45, then the ratio of total number if boys to total number girls is

9:10
7:8
10:9
9:11

Correct Answer: 10:9

Explanation:

Let the total number of boys in the class be x.
Then, according to the question,
x + 45 = 95
x = 95 - 45 = 50
Hence, the required ratio of total number of boys to total number of girls = B:G = 50:45 = 10:9

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