Answer :

Option (a) The generalised form of the number is expressed as the sum of the product of its digits with their respective place values x + y is simply the sum of the digits of the number xy Therefore option (a) is incorrect.

Option (b) 10x + y = 10 × X + 1 x Y clearly it is the sum of the product of digits with their respective places (Tens and ones). Hence 10x + y is the generalised form of xy.


Option (c) 10x – y is the difference of product of digits with their respective places but in generalised form it is the sum. Therefore (c) is incorrect.


Option (d) 10y + x = 10 x Y + 1 x X it is the general form of the number yx but question is asking about xy .Therefore (d) is incorrect.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

Fill in the blankNCERT - Mathematics Exemplar

Fill in the blankNCERT - Mathematics Exemplar

If abc is a threeNCERT - Mathematics Exemplar

Let abc be a threNCERT - Mathematics Exemplar

The sum of all nuNCERT - Mathematics Exemplar

Fill in the blankNCERT - Mathematics Exemplar

Fill in the blankNCERT - Mathematics Exemplar

Fill in the blankNCERT - Mathematics Exemplar

Fill in the blankNCERT - Mathematics Exemplar

Let abc be a threNCERT - Mathematics Exemplar