Question

In school, 40 %are boys and 900are girls .find the total number of students and the number of boys

Answer 1

Answer: There are 600 boys and the total number of students is 1500

Step-by-step explanation:

Number of girls = 900

If 40 % of the students are boys then 60% must be girls

Using unitary method

60 → 900

40  →  ?

$\frac{900}{60}$ x 40

=600

So, there are 600 boys

Total number of students

= 900 + 600

=1500

so the total number of students = 1500

Hope this helps !

Please mark as brainliest !!

Answer 2

Answer: 600 no. Of boys

N 1500 no. Of students

Step-by-step explanation:

total number of students be A

and

Total number of boys be X

Therefore

a = 900 + x

Percentage of boys = 40%

=} X = 40% of a

x = 40/100 * 900+x

X * 100/40 = 900+x

10x/4 = 900+x

10x = [900+x]4

10x = 3600 + 4x

10x-4x= 3600

6x = 3600

X = 3600/6

X= 600

Therefore there are 600 no. Of boys

And

(600+900)

1500 of students