Question

please solve it...Step by step...Will mark the correct and best answr as brainliest...

Answer 1

Answer:

62

Step-by-step explanation:

Let the digit in units place be 'x'.

Then the digit in ten's place = 3x.

Thus, the number formed = 10(3x) + x = > 31x  

Reversed number = 13x ------ (i)

Now,

Given that if digits are reversed, the number will be 36 less original number

⇒ 13x = 31x - 36

⇒ -18x = -36

⇒ x = 2.

Substitute x = 2 in (i), we get

⇒ 31x

⇒ 62.

Therefore, the number is 62.

Hope it helps!

Answer 2

Answer:

Step-by-step explanation:

Let x be the ten’s place digit and let y be the units digit

Then the number is : 10x + y

Given: x = 3y

10y + x + 36 = 10x +y,

10y - y + x - 10x + 36 = 0

9y - 9x + 36 = 0

9(y - x + 4 ) = 0 , y - x + 36 = 0. (1)

Now substituting x = 3y in (1) we get

y - 3y + 36 = 0

-2y = -36, y = -36/-2

y = 36/2 = 18. Now x = 3y

x = 3 (18) = 54

Hence the number is 10x + y = 10(54) + 18 = 540 + 18 = 558