two numbers are in the ratio 5:11 . if 1 is added to first and 5 subtracted from second the new ratio is 1:2, find the numbers
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35 and 77.
Explanation:
Let the two numbers be 5x and 11x.
So that their ratio is 5:11.
Now adding 1 to numerator,
5x+1.
And subtracting 5 from denominator,
11x-5.
We are given that their new ratio is 1:2.
So, 5x+1 : 11x-5 = 1:2
(5x+1) / (11x-5) = 1/2
Cross multiplication,
2(5x+1)=11x-5
10x+2=11x-5
2=x-5
x=7
So the numbers are,
5x=35 and 11x=77.
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