Question

the difference between a 2 digit no and the no obtained by interchanging the digit is 36 what are the digit of the no if the ratio between the digit of the no is 1:2

Answer 1

Answer:

MUJHE NAHI PATA

SYEIGPGPTOROFPHOTIFIFIDJWHWHEJFKFOFOFKDJSIDIFOF

Answer 2

Answer:

8

Step-by-step explanation:

Number = 10 × x + y = 10x+y

Interchanged Digits = 10 × y + x = 10y+x

Hence, the Equation is,

(10x+y) − (10y+x) = 36

10x + y - 10y - x = 36

9x - 9y = 36

Dividing entire equation by 9

x - y = 4 ___(i)

y:x = 1:2

$\frac{y}{x}=\frac{1}{2}\\\\2y = x$

x = 2y ___(ii)

Substituting values in eq (i)

x - y = 4

(2y) - y = 4

y = 4

Substituting value in eq (ii)

x = 2y

x = 2(4)

x = 8

The Number = 10x + y

=10(8) + 4

= 80 + 4

= 84

Sum = x + y = 8 + 4 = 12

Difference = x - y = 8 - 4 = 4

Difference between the sum and the difference of the digits of the number = Sum - Difference

= 12 - 4

= 8