Question

37. The number of boys in a school is 520 more than the number of girls. If student strength of the school is 1250. Find the number of girls in d the school. (A) 365 (C) 364 (B) 356 (D) 465​

Answer 1

Option : A => 365

Given, Number of Boys = No. of girls + 520

Let number of girls be 'x'

Therefore, No. of boys = x + 520

According to the given condition :-

No. of boys + No. of girls = 1250

(x + 520) + x = 1250

2x + 520 = 1250

2x = 1250 - 520

2x = 730

x = 730/2 = 365.

Number of girls = 365

Answer 2

Answer:

∴ The number of girls in the school is $365$.  

Step-by-step explanation:

In context with question asked,

• We have to find the number of girls of the school.
• It is given that the number of boys in a school is $520$ more than the number of girls.  
• Total strength of student of the school = $1250$
• Let, $x$ be the number of girls.
• Number of boys = $x+520$

• So, The number of girls = Total students - Number of boys

                            ∴ $x=1250-(x+520)$

                            ∴ $x=1250-x-520$

                       ∴ $x+x=730$

                            ∴ $2x=730$

                              ∴ $x=\frac{730}{2}$

                               ∴ $x=365$      

• ∴ The number of girls in the school is $365$.