Divide 6400 in the ratio 3:5

Answer 1

let the parts be 3x and 5x
3x+5x=6400
x = 800
so 3x = 2400 and 5x = 4000

check it out ,
2400+4000 = 6400
2400 : 4000
= 3(800) : 5(800)
= 3 : 5