If a:b=7:5 and b:c=9:11.Find a:b:c.A2.15:14:55B2.15:45:55C12/31/1899 7:14:15 AMD12/31/1899 2:14:15 PM
Question
If a:b=7:5 and b:c=9:11.Find a:b:c.A2.15:14:55B2.15:45:55C12/31/1899 7:14:15 AMD12/31/1899 2:14:15 PM
Solution
The given ratios are a:b = 7:5 and b:c = 9:11.
To find the ratio a:b:c, we need to make the 'b' term in both ratios equal.
Currently, we have 'b' as 5 in the first ratio and 'b' as 9 in the second ratio.
To make 'b' equal in both ratios, we can multiply the first ratio by 9 and the second ratio by 5.
Doing this, we get:
a:b = 79 : 59 = 63:45
and
b:c = 59 : 115 = 45:55
Now, 'b' is equal in both ratios (45), so we can combine them to get the ratio a:b:c.
So, a:b:c = 63:45:55.
Therefore, the correct answer is not listed in the options provided.
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