Question

the sum of the two digits of a two-digit number is 9. If 63 is subtracted from the number, its digits are reversed. Find the number.​

Answer 1

Given:- The sun of two digits of a number is 9 . If 63 Subtracted from the numbers it's digit and reserved.

To find:-That number

Let the ten 's digit be x, Then unit digit =(9-x)

Number = 10x+(9x+9) =9x+9x

Number obtained by reserving the digits.

-> 10(9-x) =90-9x

->18x=144

-> x= 144\18

->x=8

So, ten's digit=8 and unit digit =(9-x) =9-8=1

Hence required answer is 81

Hence solved :D

Answer 2

Answer:

81 is the answer

hope It helps

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