Question

If A:B= 1 : 2 and B:C= 4 : 5, then

1. The ratio of A:C is

2. The ratio of A:B:C

3. If A is 6 less than B, then the value of C is

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Answer 1

Answer:

Step-by-step explanation:

if A:B=1:2, B:C = 3:4 and C:D = 5:6 what is A:D?

A:B=1:2, or

1B = 2A …(1)

B:C = 3:4, or

4B = 3C …(2)

C:D = 5:6, or

5D = 6C …(3)

From (1) and (2)

1B = 2A, or 4B = 8A = 3C, Or 6C = 16A

Therefore 5D = 16A, or

A:D = 5:16.