3/5 of the students in a school are boy's .if the number of girls is 494,find the number of boys in the school
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student in a school of boy is 3/5
number of girls is 494
3/5=494
answer is : 1482/5
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Answer:
let the total number of students be x
then number of boys = 3/5x
number of girls =
(total number of students - number of boys)
= x-3/5x
=5x-3x/5
= 2/5x
but it is given that number of girls = 494
therefore, 2/5x = 494
= x = 494*5/2
= x = 247*5
= x = 1,235
therefore the total number of students = x = 1,235
Number of boys = 3/5x = 3/5*1,235 = 247*3 = 741
therefore the number of boys = 741
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