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Select the related number from the given alternatives.12.5 : 6.25 :: 7 : ?
3.5
3.25
6.5
12
Expression = 12.5 : 6.25 :: 7 : ?
The pattern followed is = $$n:\frac{n}{2}$$
Eg = $$12.5:\frac{12.5}{2}=12.5:6.25$$
Similarly, $$\frac{7}{2}=3.5$$
=> Ans - (A)
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