In a class of 49 students, number of girls is 2/5 of the boys. Find the number of boys in the class.
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Answered by
5
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Let the number of boys = x.
Then the number of girls will be 2/5 of the boys = 2/5 * x.
Given that Total number of students = 49.
x + 2/5 * x = 49
7/5 * x = 49
7x = 49 * 5
x = 245/7
x = 35.
Therefore the number of boys in the class = 35.
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Answered by
3
Let number of boys be x
number of girls are 2/5 x
tot number of students = x + 2/5 x
according to question
x + 2/5 x =49
7/5 x = 49
x = 49*5/7
x =35
no. of boys are 35
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