Question

The students of Class 10 are divided into two sections: A and b. To make the number of students
equal in each section, 10 students are moved from Section A to Section b. However, if 20 students are
moved from Section B to Section A, the number of students in Section A becomes double the number
of students in Section B. Find the initial number of students in the two sections.​

Answer 1

Step-by-step explanation:

no. of Students in a= x

no. of Students in b = y

x-10=y+10

x-y=10+10

x-y=20_____1

x+20=2(y-20)

x+20=2y-40

2y-x=60________2

adding 1 and 2,

x-y+2y-x=20+60

y=80

x=100