What value should come in place of the question mark(?) in the following question? √ ? / 196 = 72 / 56

Question

Accepted Answer

√ N / 196 = 72 / 56 =9/7 Then, N/196 = 9/7 x 9/7 = 81 / 49 So, N = (81 x 196) / 49 = 324.

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