Question

The digit in the ones place of a 2-digit number is twice the digit at the tens place.write the number​.

Answer 1

Answer:

Step-by-step explanation:

given  

The digit in the ones place of a 2-digit number is twice the digit at the tens place.write the number.

Now let the digit at ten’s place be a

According to question digit in the one’s place is twice the digit at ten’s place.

So it means 2 a

Now the number is a two digit number which will be 10 a + 2 a  

Therefore the number will be 10 a + 2 a

Answer 2

Answer:

12 , 24 , 36 & 48

Step-by-step explanation:

The digit in the ones place of a 2-digit number is twice the digit at the tens place

Let say number = xy

y = 2x   ( as The digit in the ones place of a 2-digit number is twice the digit at the tens place)

as  0 < y < 10  =>  0 < x < 5

x = 1 , 2  , 3 , 4

y = 2 , 4 , 6  , 8

Numbers = 12 , 24 , 36 , 48

Value of xy  = 10x + y

= 10x + 2x

= 12x

putting x = 1, 2 , 3 , 4

numbers are 12 , 24 , 36 & 48