Question

in a school the number of girls is 50 more than the number of boys if there are 620 students in the school find the number of of boys?


please please please please please please please answer the question ​

Answer 1

Answer:

Number of boys= 285

Step-by-step explanation:

let the number of boys= y

and the number of girls= x

given, x= y + 50 ---->(i)

and x + y= 620

=> y+50+y= 620 [from (i)]

=> 2y + 50= 620

=> 2y = 570

=> y = 285

Answer 2

Answer:

let no. of boys be x

atq: no of girls be y+50 -eq1

total students x +y+50 = 620 - eq2

Step-by-step explanation:

from eq 1

y+50

y= -50

putting the value of y= - 50 in eq 2

x+ (-50) + 50 =620

x- 50 + 50 = 620

x- 50 = 620 - 50

x- 50 = 570

x= 570 + 50

x = 620