Question

in a class there are 35 students. the numbers of girls is 2/5 of the numbers of boys, then find the numbers of boys and girls in the class​

Answer 1

Step-by-step explanation:

Let the number of boys be X

According to the given condition

X + 2X/5=35

5X+2X=35×5 .....( multiply by 5 throughout)

7X=35×5

X=35×5/7

X=25

Therefore the total number of boys is 25 and girls is 20

Answer 2

Question:

In a class there are 35 students. the numbers of girls is 2/5 of the numbers of boys, then find the numbers of boys and girls in the class.

Answer:

21 girls

Explanation:

The total number of students in the class = 35

The total number of Boys in the class       = 2/5th of the class

The total Number of girl in the class         =  ?

First we can find the number of boys because they have said the ratio of boys in the class.

Number of Boys = Ration of class * Total Number of students

Number of boys = 2*35/5

Number of Boys = 70/5

Number of Boys = 14

Hence the number of boys is 14.

If you have any confusion refer to the picture.

Number of girls = Total Number of Students-Number of Boys

Number of Girls = 35 - 14

Number of girls = 21

Hence the Number of Girls in the class are 21.