Question

In a school, 3/5 of the children are boys and the number of girls is 800 the number of boys is?

Answer 1

Answer:

it is 1200

Step-by-step explanation:

boys 3/5

girls 2/5

Let number of student x

so it's 1200 Mark me as brainliest

Answer 2

Given:

3/5 of the children are boys.

Number of girls in the school = 800

To find:

The total number of boys in the school.

Solution:

Let us take the total number of children in the school as X.

Number of girls in the school = 800

Number of boys in the school = 3/5 of the total children

Number of boys in the school = 3/5 of X = (3/5) X

Total children in the school = Number of boys + number of girls in the school

X = (3/5) X + 800

X - (3/5) X = 800

We cannot add or subtract fractions with different denominators directly.

The denominators must be the same. Therefore, we will take the L.C.M and subtract the values.

After taking L.C.M,

(5X – 3X)/ 5 = 800

2X = 800× 5

2X = 4000

X = 2000

The total number of children in the school is 2000.

Total number of boys = (3/5) X

= (3/5) × 2000

= 1200

Hence, the total number of boys in the school is 1200.