there are 15 students in a dance class out of 15 , six are girls, what will be the fraction of boys in that dance class?
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There are 45 students in a class. 2/5 of them are boys. How many are girls?
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Michael Nichols
Answered November 11, 2018
If 2/5 are boys then 3/5 are girls
These added together equal 5/5 which is the total number in the class ( 45 in this example )
45 divided by 5 equals 9
3 fifths would be 3 x 9 = 27 girls
The other way is to let x = number of girls
multiply 45 ( total # students) by (3/5)
x = 45 (3/5)
x = 135/5 = 27 girls
Gaurav Jain
Answered August 1, 2020
According To The Question We Have ==>
Total Number of Students = 45
Boys Are = 2/5 that Means 2/5 of Total Students So We Get Number Of Boys = 2/5 * 45 = 18 Boys.
Also We Have :-
Total No. Of Boys + Total No. of Girls = Total Students
18 + Girls = 45
Girls = 45 — 18 = 27 That Means 3/5 Number Of Girls.
Also U Can Check By Ratio :- 2/5 + 3/5 = 1
total number of students =15
girls total = 6
boys = ? boys
15 minis 6
9 boys total