Question

Solve the following.
1.A:B=2:5 and B:C = 3:7 , find A:C.
2.A:B = 7:8 and B:C = 2:5 , find A:C.​

Answer 1

Answer:1) 6:35

2) 7:20

Step-by-step explanation:

1)we will make the two ratios into one ratio

How?

B is common so find a common factor of 5 and 3

Correct! it is 15

Then, 2:5 = 6:15 and 3:7= 15:35

So, A:B:C = 6:15:35

A:C = 6:35

2)Now, again 7:8 =7:8 only

and, 2:5 = 8:20

So, A:B:C =7:8:20

A:C = 7:20

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