Question

In a number of two digit units digit is twice the tens digit if 36 be added to the number the digits are reversed​

Answer 1

Answer:

see the image for answer

Answer 2

The number=48

Step-by-step explanation:

Let unit digit of two digit number=x

Tens digit of two digit number=y

Number=10y+x

According to question

x=2y

$10y+x+36=10x+y$

$10y-y+36=10x-x$

$9y+36=9x$

Equation on both sides divided by 9

$y+4=x$

Substitute the values of x

$y+4=2y$

$2y-y=4$

$y=4$

Substitute the value of y

$x=2(4)=8$

Then , the number =$10(4)+8=40+8=48$

Hence, the number=48

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