Question

in a class of 35 students , the number of girls is 3\4 of the boys. Find the number of boys and girls in the class. PLS SOMEONE HELP...

Answer 1

ANSWER :

20 boys and 15 girls

EXPLANATION:

3/4of boys +no. of boys =35

let no. of boys be x

so,

3/4*x+x=35

3x/4+x=35

3x+4x/4=35

7x=35*4

x=35*4/7

x=5*4

no. of boys is 20 so no. of girls be

3/4*x

3/4*20=15

Answer 2

Answer:

Given:

Total number of students = 35

Number of girls = 3/4 of boys

Answer:

Let the number of boys be X and the number of girls

= y

First case:

X+Y = 35

x= 35-y......(I) equation

Second case :

y= 3/4ofx....(2) equation

put the value of x from equation (I) in equation (ii)

y= 3/4×35-y

y+y = 105/4

2y = 105/4

y= 105/4×2

y = 105/8

y= 13

Here we the value of girls

so Number of boys

= Total number of students - Number of girls

X = 35 - y

x = 35 - 13

x = 22

Verification :

x + y = 35

22 + 13 =35

35 = 35

So our answer is correct

Answer:

Number of girls = 13

Number of boys = 22