Question

answer the question step by step

Answer 1

Answer:

Step-by-step explanation:

No.of students=x

Cost of each student =y

So,xy=480 y=480/x......(1)

8 failed to attend picnic,so,cost increase by rs.10,

(x-8)(y+10)=480

Use eq.1

(x-8)(480/x+10)=480

x^2-8x-384

x2+16x-24-384

x(x+16)-24(x+16)

(x-24)(x-16)

SO,24 STUDENTS ATTEND THE PICNIC