Question

If A:B = 5:18 and B:C = 6:4, form the ratio A:B:C​

Answer 1

5:18:12

Explanation:

5:18

_:6:4 --> since you multiply 6 by 3 to get 18, multiply 4 by three to get the A:B:C ratio.

5:18:12

Answer 2

5 : 18 : 12

Explanation:

Express the ratio B : C in fractional form, that is

`(B)/(C)` =
`(6)/(4)` ( cross- multiply )

6C = 4B ( divide both sides by 6 )

C =
`(4)/(6)` B =
`(2)/(3)` B , then

C =
`(2)/(3)` × 18 = 2 × 6 = 12

Hence

A : B : C = 5 : 18 : 12