Question

the sum of digits of a 2 digit number is 3 if the number is 6 times the ones digit find the number

Answer 1

Answer:

12

Step-by-step explanation:

2 digit numbers that equal 3 are

03

12

21

30

you can take all of their ones digits

3

2

1

0

then multiply by 6

18

12

6

0

the one that matches is #2

Answer 2

Hey friend!

Here is your answer:

Let the unit digit be $x$ and ten’s digit be $y$


Given,

$x + y = 3$. _eq1

Also $x + 10y = 6x$

=> $-5x + 10y = 0$

=> $2y - x = 0$. _eq2

On adding eq1 and eq2, we get;

$3y = 3$

=> $y = 3$


Putting the value of y in eq1,

We get x = 3 - 1

x = 2


Therefore the required number is 10y + x = 12



I hope you understand and it helps you. If you like the answer, a thanks would be appreciated