Question

In class 10,if three students sit on each bench,one student will be left.if four students sit on each bench,one bench will be left.Findthe number of students and the number of benches in that class.

Answer 1

Answer: 16 students, 5 bench

Step-by-step explanation:

s=3b+1

s=4(b-1)

∴3b+1=4(b-1)

 3b+1=4b-4

       b=5

∴s=3×5+1=16