Question

Form a two digit number whose unit's place is 'x' and ten's place is y°​

Answer 1

The required number is 10y + x

Step-by-step explanation:

We have to form a two digit number whose unit's place is x and ten's place is y.

If we write the number on paper, it will look like

y x

where x is in unit's place and y is in ten's place.

The place value of y in y x is = 10 × y = 10y

and that of x is = 1 × x = x

Therefore the required number is (10y + x).

Note:

If we choose any integral value of x, y from [0, 9], (0, 9] respectively in arbitrary way, we can form any two digit number such as 10, 11, ..., 99.