A bag contains 315 beads.there are twice as many red beads as blue beads and 3 times as many yellow beads as ree beads.how many yellow beads are there

Question

A bag contains 315 beads.there are twice as many red beads as blue beads and 3 times as many yellow beads as ree beads.how many yellow beads are there

Answer 1

r=2b

y=3r=6b

315=b+r+y

b+2b+6b=315

9b=315

b=315/9=35 blue

r=2b=2(35)=70 red

y=3r= 3(70)= 210 yellow beads