1.If `a:b =3:4` and `b:c= 8:9` then `a:c=?`

If a : b = 3 : 4 and b : c = 8 : 9, find a : b : c

If a : b=4:5 and b : c=2:3, then a : c (a) 4:3 (b) 8: 15 (c) 8:9 (d) 5:3

If A:B = 3:5 and B: C = 8:11, find A.C.

If A:B=3:4 and B:C=2:3 , find A:B:C .

If A:B = 2:7 and B:C = 9:13, find A:C.

If A:B = 1:3 and B: C = 2:5. find A:C.

In a DeltaABC if a = 7 , b = 8 and c = 9 , then the length of the line joining B to the mid-points of AC is

In a !ABC if a = 7 , b = 8 and c = 9 , then the length of the line joining B to the mid-points of AC is

In DeltaABC, a=9, b=8 and c=4, then 3cosB-6cosC=?