y=youngest
o=oldest
3y=o+48
o=y+4
since even is 2 4 6 8 10 and consecutive means right after the other 8-2=4 older sister is older by 4 years (showing you this to let you know how I came up with the equation o=y+4
3y=y+4+48
-y both sides
2y=52
÷2 both sides
y= 26 answer is N
