Question

A ratio b 3 ratio 5 and b ratio c 6 ratio 7 fund ABC

Answer 1

A:B = 3:5
B: C=6:7
L.C.M OF 5 AND 6 IS 30
A:B=(3:5)×6=18:30
B:C =(6:7)×5=30:35
A:B:C= 18:30:35

Answer 2

to make ratio of b equal we multiply a/b by 5 and b/c by 6
then
a/b=3/5×6
a:b=18/30------1
b/c=6/7×5
b:c=30/35------2
from 1 and 2
a:b:c=18:30:35