abhinavsareen1 wrote:

While solving the question, I took xy as a number rather taking it as x*y. I think the question maker should clarify this ambiguity while framing the question, as xy can represent a number of the form 10x+y.

While I understand what you mean, it's actually the other way around. If xy where two digit integer, then it would have been clearly mentioned. Without this xy can only mean x*y (only multiplication sign can be omitted this way).

Does this mean whenever and wherever xy would be mentioned, it would mean x*y until and unless it is mentioned xy represents a 2 digit integer?