Question

The ratio of two natural numbers 'x' and 'y' is 9:13, respectively. When 30 is added to 'x' and 15 is subtracted from 'y', the ratio of 'x' to 'y' becomes 3:2. Find the square of the difference between the two numbers.

A 434
B 400
C 312
D 325
E None of these
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