blue marbles ----- x
red marbles ---- (3/5)x
total = x + (3/5)x = 8x/5
ratio of
red : total = 3x/5 : 8x/5
= 3x : 8x
= 3 : 8
There are some red and blue marbles in a box. There are 3/5 as many red marbles as blue marbles. Find the ratio of the number of red marbles to the total number of marbles.
1 answer