Question

I have certain amount with m.if i give Rs3 to each student in class,Rs30 are left with me and if I decided to give Rs4 to each student then I need rs 10 more.Find the amount and the no of students in the class

Answer 1

Answer:

let the students be x

3x =y-30

4x =y+10

x =y+10/4

put the value of x in first equation

3y+10/4=y-30

3y- y =. - 30-10/4

2y=130/4

y= -130/8