Question

Plz solve this question with full explanation..☆

Answer 1

2 x 3 =6 , 26 + 36 = 62 , hence the answer is 26

Answer 2

Let the digits be x and y.

Then the decimal expansion is 10x + y.

Given that the units digit is thrice the ten's digit.

= > y = 3x ---- (1)

Given that if 36 is added to the number the digits interchange their place.

= > 10x + y + 36 = 10y + x

= > 10x + y - 10y - x = -36

= > 9x - 9y = -36

= > x - y = -4

= > y - x = 4 ---- (2)

Substitute (1) in (2), we get

= > 3x - x = 4

= > 2x = 4

= > x = 2.

Substitute x = 2 in (1), we get

= > y = 3x

= > y = 3(2)

= > y = 6.

so,

The required decimal expansion = 10x + y = 10(2) + 6 = 26.

Therefore,the number is 26.

Hope this helps!