Question

17 Praveena has 20 stamps more than three times the number of stamps Binthu has. If both them together have 140 stamps , how many stamps does Binthu have?​

Answer 1

Answer:

let Binthu have x stamps

so Proveena have 3x+20 stamps

so, x+3x+20=140

=> 4x=140-20

=> 4x=120

=> x=120/4

=> x=30

so, Binthu have 30 stamps