Question

if A:B=7:5 AND B:C=8:3 FIND OUT A:B:C

Answer 1

hope this pic helps u...☺

Answer 2

Answer:  The result is A:B:C = 56:40:15.

Step-by-step explanation: Given, A:B=7:5  and  B:C=8:3.

To find the combined ratio, first we need to know which is the common variable among A, B and C. As we can see from the given information, B is common in both the ratios.

So, to combine the ratios, we have to find the LCM of both the values of B in the two ratios which are 5 and 8.

LCM(5, 8) = 40.

∴A:B = 7:5 = 7×8 : 5×8 = 56:40,

and

B:C = 8:3 = 8×5 : 3×5 = 40:15.

Thus, combining both of the above, we get

A:B:C = 56:40:15.