in a class 92 students . three-fourth ofthe students are boys and rest are girls . the number of girls are ?

Question

LINEAR EQUATION IN ONE VARIABLE

Answer 1

If 3/4 are boys then 1/4 are girls.

(1/4)(92) = 23

Answer 2

If x = the number of girls, then 3x = the number of boys, since there are 3 times as many boys as girls in the class

 

(3/4 + 1/4 = 1, and 3/4 = 3 * 1/4)

 

Using a linear equation of one variable, this would be

 

3x + x = 92

 

4x = 92

 

x = 23, so there are 23 girls in the class