What should be subtracted from the numbers in the ratio 9 : 16 so as to get 1 : 2?
Explanation:
Two numbers are in the ratio of 9 : 16. Let the numbers be 9x and 16x.
Now, let a be subtracted to get new ratio as 1 : 2.
∴ 9x-a16x-a=12
⇒ 18x - 2a = 16x - a
⇒ 2x = a
Since we do not know the value of x, we cannot find out the value of a.
Hence, option (d).
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